10 best ultrasound recording devices

Ultrasound recording devices, also known as ultrasonic recorders, are electronic devices used to capture and record ultrasonic sound frequencies that are typically beyond the range of human hearing. These devices have various applications in fields such as wildlife monitoring, scientific research, and industrial testing. Here are some key points about ultrasound recording devices:

  1. Purpose: Ultrasound recording devices are primarily designed to capture and analyze ultrasonic sound waves, which are sound frequencies above the upper limit of human hearing, typically above 20 kHz. These frequencies are used in a variety of applications, from studying animal behavior to detecting structural flaws in materials.

  2. Applications:

    • Wildlife Monitoring: Researchers use ultrasound recorders to study the vocalizations of animals such as bats, dolphins, and certain rodents. This helps in understanding their behavior and ecological roles.
    • Medical Imaging: Ultrasound is widely used in medical imaging to visualize internal organs and tissues. However, medical ultrasound machines are typically not considered ultrasound recording devices in the same sense as those used for research and wildlife monitoring.
    • Industrial Testing: Ultrasound is used to inspect materials for defects, measure thickness, and detect leaks in various industrial applications.
  3. Components: Ultrasound recording devices typically consist of a microphone or transducer designed to capture ultrasonic frequencies, analog-to-digital converters to convert the analog signals into digital data, and storage capabilities to record and store the data.

  4. Frequency Range: The frequency range of ultrasound recording devices can vary depending on their intended use.Some are designed to capture frequencies within a specific range, while others have a broader frequency range to accommodate various applications.

  5. Data Storage: Ultrasound recorders store recorded data digitally, often on memory cards or built-in storage. The recorded data can be transferred to a computer for analysis and further processing.

  6. Power Source: These devices are typically powered by batteries or external power sources, depending on the intended use and portability requirements.

  7. Analysis Software: Many ultrasound recording devices come with software that allows users to analyze and visualize the recorded ultrasonic data. This software can help researchers identify patterns and frequencies of interest.

  8. Field Use: Ultrasound recorders used in wildlife monitoring are often designed to be portable and rugged to withstand outdoor conditions. They may be deployed in remote areas to capture the sounds of wildlife without human interference.

  9. Research and Conservation: These devices play a crucial role in wildlife conservation efforts by helping researchers monitor and protect species that rely on ultrasonic communication.

In summary, ultrasound recording devices are specialized electronic equipment used to capture and analyze ultrasonic sound frequencies for various purposes, including wildlife monitoring, scientific research, and industrial testing. They are designed to record sound waves beyond the range of human hearing and often come with software for data analysis. These devices are valuable tools in a range of fields where ultrasonic sound is of interest.

Below you can find our editor's choice of the best ultrasound recording devices on the market
  

Mini Small Voice Activated Audio Recorder Super Long 288 Hour Storage Capacity (8GB) | 25 Day Standby Battery & up to 28 hrs Cont. | Date & Time Stamp | Easy to Use | Crystal Clear Digital Recording

SOTA Surveillance

Based on 33 reviews Check latest price

Product description

The Worlds Most Powerful Voice Recorder Is Here!



Our best flash drive recorder just got better! The new MQ-U350 is an upgraded version of our popular MQ-300 recorder. New features include the following: upgraded body style, double the memory, 24hr continuous record (vs 15hr), and time/date stamp ( see note at bottom of description). It is hands down the most powerful and feature packed flash drive voice recorder on the market.



The SOTS-USR-350_C has all the capabilities most flash drive recording devices combined into one the best voice recorders on the market today. Easily switch between voice activation and continuous recording modes with a flip of a switch. In addition to the amazing 25 day standby battery life in voice activation mode, it can also record while plugged in for virtually unlimited battery life.



Not only can it record audio, it also functions as an ordinary flash drive and can store other files/documents. When you are ready to listen to what you have recorded, simply plug it in to MAC or Windows computer to instantly view/listen to the files.



Includes

1 x 8GB Voice Recorder

1x USB wall charger (color will vary - black or white)

1 X "OTG" Cable

1 x Instruction booklet

Easy to read quick start guide and important tips written by our product experts

FREE Live Technical Support



Note: Date and time stamp software is only compatible with windows based computers. Mac users will need to use a windows PC for initial date and time setup.



******ALL MANUALS, TECH SUPPORT & PRODUCT INFORMATION ARE IN ENGLISH ONLY******

  • PROFESSIONAL GRADE FEATURES - 288 Hour Recording Capacity | Long Lasting| 25 Day standby Battery in VOS mode and up to 28 hours in continuous recording mode | Capable of recording while plugged in for charging provides unlimited covert recording | EMBEDDED SOFTWARE for Date & Time Setting, Voice Activation Sensitivity and Recording Quality Adjustments
  • EASY ONE TOUCH OPERATION - No Confusing Lights or buttons. Simply move the switch to either side to start and stop recording.----Works on Any Mac or Windows Computer.------ In addition to your audio recordings, you can store any files you would like on this device.
  • VOICE ACTIVATED recorder or continuous recording - Set the device where you want it, and then forget it. It'll turn on the next time it hears sound thanks to it's voice-activation feature. When the sound stops, the covert audio recorder goes into a sleep mode to save battery life and disk space | ADJUSTABLE VOICE ACTIVATION LEVEL- Using the Embedded software you can adjust the sensitivity to better match the audio environment | Truly A Complete Audio Listening / Recording Device
  • HIGH QUALITY RECORDING & EASY PLAYBACK--- Files are recorded in HD QUALITY MP3 format that can be adjusted between XHQ and HQ quality levels | it can be played back in any audio program including iTunes or Windows Media Player.
  • 100% GUARANTEED - Premium USA Based Tech Support By Phone, Email or Live Chat | FREE One Year Warranty Included | *****ALL MANUALS, TECH SUPPORT & PRODUCT INFORMATION ARE IN ENGLISH ONLY*****

32GB Digital Voice Recorder,Henf Voice Activated Recorder with 70 Hours Recording Time,Thinnest Audio Voice Recorder,HD Recording Device with Playback and 365 Days Standby Battery for Lecture,Meetings

Henf

Based on 14 reviews Check latest price

Product description

Are you looking for a reliable, long-lasting recorder ?

Are you old tape recorder terrible and out of memory ?

Are you want an ultra-thin design, easy to carry recorder ?

Our recorder is your best choice!



Technical specifications:

1. Dimensions : 2.68x1.57x0.2 inch

2. Weight : 0.81oz

3. Battery - rechargeable 3000mAh/ Recording of about 70 hours

4. Audio format - WAV

5. Voice Activated Sensor Built-In + Recording while Charging + Listening while recording

6. Voice activated – Configurable voice activated sensor

7. Time Stamp on Recordings

8. Operating system -Windows98/ME/2K/XP/Vista/Mac OS 10

9.Recording quality: 192 kbps



The package contains:

1 X Voice Recorder

1 X USB Cable

1 X User’s manual

1 X Earphone

1 X OTG Connector

1 X Type C Connector

1 X Audio Cable

  • ✅【 Super Lightweight & Slimmest Design 】 Body size: 2.68 x 1.57 x 0.19 inches and weight 0.81 oz.This voice recorder for lectures is thinnest in size and convenient to carry around,it is easy to put in your wallet, your pocket or anywhere you can need to record,will not cause any attention
  • ✅【 32GB Storage Capacity & Long Time Record 】 This auto recording device has 32GB large storage capacity, can store up to 2300 hours of recording file or 10000 songs.Digital voice recorder built-in rechargeable battery support record 70 hours without interruption or standby 365 days.Totally satisfy your need,no need to worry about insufficient memory
  • ✅【 Simple Operation & Voice Activated Recording 】One button to operate,just simply slide the switch to "ON" "OFF" to start/save recording.Set the VOR mode,the recorder automatically starts recording when the sound is detected,save your time and memory space.It also support charging while recording and long time recording,ensure this digital recorder can work a long time for you
  • ✅【 Excellent Recording Quality & Multifunction 】This digital voice recorder equipped with upgraded DSP professional intelligent digital noise reduction chip,effectively reduce background noise,ensuring high quality audio experience.More useful features, including MP3 player,delete file in devise,playback,forward,connected with phone etc. Perfect for daily activities, memos, lectures, meetings, interviews, etc
  • ✅【Satisfying After-sales Support 】Thinnest and portable design allows you to take this voice recorders with playback to everywhere conveniently.Please feel free to contact our support team for any questions or problems,We provide 12-month warranty,your satisfaction is our top most priority.We have manual,step-by-step tutorials and USB disk with instruction video

User questions & answers

Question: Does it make any noises when recording or stop recording? Want to be discrete
Answer: Switch discrete and quiet.
Question: I can’t tell if this if this is compatible with iphone and macbooks. is it? thanks
Answer: Hi,friend,this device compatible with iphone and Mac OS10 system.
Question: Can you record in wav format or only mp3 format
Answer: Record in wav format.
Question: Is this compatible with android
Answer: Yes,compatible with android.The device supports OTG function. Connect the OTG type to the Android device to transfer data or download files.

Product features

The Package Contains

  • 1 X Voice Recorder
  • 1 X USB Cable
  • 1 X User’s manual
  • 1 X Earphone
  • 1 X OTG Connector
  • 1 X Type C Connector
  • 1 X Audio Cable

Voice Recorder Bracelet, 32GB Digital Voice Activated Recorder with Playback/20Hrs Continuous Recording, Voice Recording Device Sound Recorder with Password/Bluetooth Support, Pedometer

MTFY

Based on 43 reviews Check latest price

Product description

Specification:

Dimension: Dial-1.73 inch x 1.45 inch; Bracelet: 8.86inch

Weight: 35g

Battery: Li-polymer Battery

Charge time: About 3 Hour

Memory: 32GB

Play format: MP3/WAV

Recording Bit Rate: 512K, 768K, 1024K, 1536K

Compatibility: Mac, Windows, Android

Charger: Without charger but include a data cable



Package include:

1 x Bracelet Voice Recorder

1 x USB Cable

1 x Wired Earphone

1 x Transfer line of audio

1 x User Manual

1 x OTG Connector

1 x Type C Connector

1 x After-sale Card

  • 🎤【Hi-Fi High Quality Sound】The built-in powerful high quality chip, guarantees the high fidelity sound quality output. This watch voice recorder has 4 optional recording bit rate, the highest bit rate up to 1536K. It can more truly restore the music, enjoy the shock of the auditory feast
  • 🎤【20Hrs Long Time Recording】The bracelet can storage up to 384H Recording files or 5000 songs. At the same time, It support long time recording, under full charge, up to 20Hrs of continuous recording. Comes with 32GB internal memory, let you store various recording files/songs/txt without worrying about losing important files and recordings
  • 🎤【Voice Activated Recorder】Voice activated recording, in which a sound is recorded when it is detected, can save store space and electricity. It can be used as a regular watch for everyday use, and you can set its screen saver to a digital clock
  • 🎤【Support Bluetooth】This bracelet audio recorder supports wireless connectivity so it can be used as a playback source to connect wireless headsets and Bluetooth speakers. You can listen to the voice files by connecting the recorder to a wireless headset, so that you can get rid of the limited distance of the wired earphone. Of course, wired headphones can also be connected via USB port
  • 🎤【Multifunctional】This digital voice recorder has a wealth of functions, supports one-click recording, voice activated recording, password protection, e-book reading, pedometer, etc. It can also act as a USB disk to store the documents you want
  • 🎤【NOTE】☑ If have any question about this product, Please contact us by amazon message center. We will reply you within 24 hours and help you solve any product question. This sound recorder doesn't come with a charger, but it comes with a data cable. Pls note that we provide a USB disk with instructional video in the package

User questions & answers

Question: Is it bluetooth compatable
Answer: Yes, it can be connected to a Bluetooth headset or Bluetooth speaker.
Question: Is this watch waterproof
Answer: Sorry friend, it is not waterproof.
Question: How long do you have to press the record button before it starts recording
Answer: About two to three (2-3) seconds and the device starts recording. Pretty good recording quality.
Question: When recording, what shows up on the watch face? ie. will someone see you are recording them if they look at the watch
Answer: When you have presed the button for recording within few seconds it will switch to watch mode. No one can see that you are recording unless you want to know them

Product features

One Click to Recording

Long press button to start recording

Short Press to save recording file

Voice Activated Recording

Set to record when the sound is detected. Automatically picks up a detected sound and stops recording when it turns quiet.

4 optional recording bit rate, the highest bit rate up to 1536 K.

Password Protected

Recording can be accessed only with the 4 digits password. Nobody can access your recordings or saved files.

Timed Shutdown

Support to set automatic shutdown up to 99 mins.

If you want recorder in a certain range of time, you can set its timed shutdown function.

Surpport Wireless Connect

Get rid of the headphone cords

The bracelet voice recorder can be used as a playback source to connect wireless headsets and wireless speakers

Reading Ebook

Support to read ebook

you can transfer the document or novel into machine and read it at any time

Dimension&Specification

  • Dimension: 8.86''/1.73'' x 1.45''
  • Weight: 35g
  • Battery: Li-polymer Battery
  • Charge Time: About 3 Hours
  • Memory: 32GB
  • Recording Format: WAV/MP3
  • Recording Bit Rate: 512k, 768k, 1024k, 1536k
  • Compatibility: Mac, Windows, Android

Digital Mini Voice Recorder Audio Micro Sound Device Small HD Noise Reduction Professional for Lectures Meetings Classes Portable STTWUNAKE

STTWUNAKE

Based on 14 reviews Check latest price
  • STTWUNAKE M6 has a distinctive star appearance, designed by well-known jewelry designers, it can be called a combination of technology and aesthetics.
  • In order to meet the needs of different usage scenarios, the STTWUNAKE team designed a lanyard hole and presented a jade lanyard. You can hang it around your neck, or hang it on the keychain.
  • The M6 not only has a novel appearance, but also adopts the industry's top configuration. It has a built-in high-sensitivity microphone. As long as the human ear can hear the voice, it can record.
  • And built-in 8-core intelligent noise reduction chip, effectively filter clutter, and output pure sound.
  • The M6 is very convenient to use. When the battery is low, the voice recorder will automatically save the file and then turn off the power.

User questions & answers

Question: Do any lights blink when device is turned on
Answer: When the recorder is turned on or off, the indicator light of the recorder flashes to indicate the state of the recorder. After the recording starts, the indicator light turns off, and no indicator light flashes during the recording process.
Question: Does it replay the recordings? or do you have to connect it to a computer to do that
Answer: 原文 If you need to listen to the recording, you can plug in earphones or connect to a computer.
Question: Can you make the recorder smaller than that , like a dimension of an SD memory card, something that you can easily hide
Answer: Dear friend, the size of this tape recorder is: 3.5*3*0.5cm
Question: How long is battery life
Answer: Dear friend, after charging, you can record for about 20 hours continuously, can store 96 hours of recording files.

Product features

I am glad to introduce you to this tape recorder

In addition to retaining the functions of a high-quality tape recorder, STTWUNAKE M6 invited well-known jewelry designers to design the M6 shell. The hexagonal shape perfectly interprets the combination of technology and art. And for wearing comfort, we use top-quality materials, the weight of M6 is only 11 grams, and the flat shape is more suitable for wearing.

As a recorder, it is not enough to have a beautiful appearance. The recording quality is the core function of the recorder. M6 uses an 8-core intelligent noise reduction chip to reduce noise through the principle of filtering and cancellation, allowing users to hear clearer sounds. And the built-in large-diameter microphone, the sensitivity reaches the human ear level, as long as the human ear can hear the sound, the M6 can record, giving users a better experience.

In addition, the M6 is very convenient to use. Compared with the cumbersome operation of a traditional recorder, the user only needs to turn on the recorder, and the recorder can record the sound, and close the recorder to save the file. And the chip has a built-in intelligent power management system. When the power is insufficient, the recorder will save the file first, and then turn off the power to avoid the loss of important user data.

Of course, as a brand that has been operating in the recorder industry for many years, in addition to giving away earphones and data cables, we also provide you with a jade lanyard, so you don’t need to buy it. The inner packing box and outer packing box are made of the best quality materials, so you don't have to worry about product damage during transportation.

Finally, we summarize the characteristics of this product:

1. Designed by jewelry designer, beautiful appearance.

2. HD recording, intelligent noise reduction.

3. Simple operation and easy to carry.

4. Beautiful packaging and complete accessories.

Voice Recorder Device Very with Play Back for Stuffed Animal Inserts and Craft Projects in White

Based on 868 reviews Check latest price

Product description

This easy-to-use voice/sound recorder will provide a lot of enjoyment by letting you record up to a 10 second message that can be played back with the push of a button. It can be used to send a special message to someone but because of its construction also makes an ideal voice unit for use in plush toys, seasonal displays and other craft projects. You can record over and over on this unit. Each time you record a message it replaces the previous one. It is powered by long-lasting watch batteries that are easily replaced if it is ever necessary. The quality of the speaker is excellent and your message will play back loud and clear.

  • CUSTOMIZABLE: Create your own message, music, or sound to record and become a part of your craft project or the voice of your stuffed animal. 10 seconds of recording time.
  • EASY TO USE: 1. Rotate the top clockwise, exposing the letter "R" 2. Hold device about 4in away from mouth or sound origin 3. Press and hold button to record, making sure sound is clear 4. Release button when finished recording 5. Rotate the top of the device to the letter "P" and press the same button to play message
  • RE-RECORDABLE: Not satisfied with the recording? Dog started barking halfway through? Sneezed? Don't worry! Just re-follow the step-by-step instructions to overwrite the messed-up recording.
  • TOP QUALITY: Play back sound and speaker is high quality, designed with the many uses for the recorder in mind! Stuffed inside a stuffed animal? Put inside a craft box? The sound will still be heard!
  • 100% GUARANTEED: Each of our recorders are made with our customers in mind and your satisfaction is Guaranteed or your money back.

User questions & answers

Question: does this fit inside a wuggle pet
Answer: I am sorry but there is no way to retrieve it if you record over it. We recommend once you have your recording set to put a little super glue on the switch and tape to make sure it won't be accidentally recorded over. If the heart dies, change the batteries and the recording will still be on the heart. I am sorry that happened to you.
Question: How do i re-record? the message that’s recorded is messed up. we’ve tried holding the r down for a long time but it’s not working
Answer: This is made in Hong Kong. ! Please visit us on our Learning Resources site under the “contact us” page with any other questions you may have.
Question: Is this device loops the recorded sounds, when you play it back
Answer: Hello Amazon Customer! The New Sprouts Bushel of Fruit are hollow on the inside. Feel free to contact us at [email protected] with any other questions you may have.
Question: If you have to change the battery does it lose the recording
Answer: They are perfect for the toddler size. Each piece is at least 2-2.5" in diameter and 2-4" in length. The orange looks like a "Halo" brand to me and the strawberry is a nice size. Somethings are actual size like the apricot, strawberry, orange, grapes, broccoli, lemons, carrot slices, and cucumber slices but the banana's, pears, pumpkins and apples are on the small size. I run a daycare and all my children love this brand! I have had them for years with lots of use and they have held up well for me. I have all their different types of food sets and I believe they are worth the money.

RecorderGear PR200 Bluetooth Cell Phone Call Recording Device, iPhone and Android Mobile Recorder

RecorderGear

Based on 240 reviews Check latest price

Product description

The PR200 is the ultimate recording device because is can record both cell phone calls and function as a regular handheld digital voice recorder. The PR200 can take care of most of your recording needs. Cell Phone Recording The PR200 wirelessly records both sides of a conversation on any bluetooth compatible mobile phone. Most phones have bluetooth capability including iPhone, android, all smart phones, and basic cell phones. Once your phone is connected to the PR200 you phone conversation is wirelessly routed through the device and it records both sides of the call. You will hold the PR200 up to your ear and talk, using it in place of your cell phone. Voice Recorder Switch the device into the voice recorder mode to record meetings, lectures, dictations, or memos. Its small size and high powered microphone make it ultimate multi-use recording device. No cables or software is needed to get your recordings from the device and onto a MAC/Windows computer. Just plug the device directly into any computer and functions as USB flash drive making it super easy to retrieve your recordings. You can also listen to your recordings directly from the device.

  • WORKS WITH ANY BLUETOOTH CELL PHONE; Wirelessly Record both sides of a conversation on any bluetooth compatible mobile phone. Works on iPhone, Android, smart phones, and simple phones.
  • VOICE RECORDER MODE; Use the PR200 as a general voice recorder; record meetings, lectures, dictations, or memos!
  • BUILT-IN SPEAKER & USB CONNECTOR; Listen to recordings directly from the device. No software or cables needed, it turns into a USB storage device and plugs directly into your computer. Works on MAC/Windows. MP3 format recording.
  • 4GB MEMORY, 144HR CAPACITY, UP TO 12HR BATTERY; Plenty of room for your recordings and battery life.
  • PREMIUM RECORDERGEAR BRAND; 1-Year warranty & Customer Support

User questions & answers

Question: Will this store the number from the call your recording
Answer: No it will not, it doesn't have caller identification capabilities. However, as a working tool, it is possibly one of the best investments I've made to date. It allows you the recording of all calls, which is great for telephonic interviews, when you're not able to write the information. It doubles as Bluetooth in your car, so you never have to pull over. You auto's Bluetooth can be in use and this will still record your conversation, as long as it is still paired. I maintains folders and files, as you coordinate them with the aide of your computer. All files are in your pocket at all times. However, its best to maintain a second file away from this one.
Question: Will this record both sides of the conversation if i use a Bluetooth ear piece and this device at the same time
Answer: One device at a time. However if you use speaker phone the recorder will automatically go into open mic record and get both sides of the conversation
Question: Will this work with the new android pie software
Answer: Works with Bluetooth, has nothing to do with being an android or not.
Question: Does it record WhatsApp calls? What is the range of bluetooth on this device
Answer: Unfortunately, this device will not record whatsapp calls or any other apps like that.

Product features

Description

The PR200 is the ultimate recording device, it can record both cell phone calls and function as a regular handheld digital voice recorder.

The PR200 wirelessly records both sides of a conversation on any bluetooth compatible mobile phone. Most phones have bluetooth capability including iPhone, android, all smart phones, and basic cell phones. Once your phone is connected to the PR200 your phone conversation is wirelessly routed through the device and it records both sides of the call. You will hold the PR200 up to your ear and talk, using it in place of your cell phone.

Switch the device into the voice recorder mode to record meetings, lectures, dictations, or memos! Its small size and high powered microphone make it ultimate multi-use recording device.

No cables or software is needed to get your recordings from the device and onto a MAC/Windows computer. It functions as USB flash drive making it super easy to retrieve your recordings. You can also listen to your recordings directly from the device!

Bluetooth Call Recording

The PR200 is compatible with any phone equipped with bluetooth. answer, end, and record calls all with the push of a button.

Audio Recording Function

In the digital voice recorder mode the PR200 reaches beyond a normal call recorder. You can record meetings, lectures, or any other of your recording needs.

Easy To Use

Play back recordings directly from the PR200 or plug into any MAC or Windows computer. It functions as a USB flash drive so there are no extra cables or software needed.

Year Warranty

Our company’s 1 year warranty is one thing that you can always count on. It is something that we offer that helps you know that you can trust any product that you buy from us. This combined with our 30 day return policy you can’t go wrong when buying a RecorderGear product. With live customer service and tech support we are the best brand around because we are the one that you can trust.

16GB Mini Voice Activated Recorder, Magnetic Audio Recorder Small Recording Devices w/ 500Hours Recording Time 365 Days Standby Digital Voice Recorder MP3 Player for Lecture, Meeting, Interview

SSLine

Based on 57 reviews Check latest price

Product description

Specifications:

✔ Voice Activated Recorder

✔ 16 GB Internal Memory

✔ 3200mAh Battery

✔ Dimensions: (3 x 1.2 x 1)inch

✔ Audio format: MP3, WMA, WAV

✔ 60ft Long Distance Recording

✔ 500Hours/20 days Continuous Recording Time

✔ 365 days Standby Time



Package Included:

✔ 1 x Voice Recorder

✔ 1 x earphones

✔ 1 x Charging USB Cable

✔ 1 x Extension Cable

✔ 1 x Android Connector

✔ 1 x Type C Connector

✔ 1 x User Manual

✔ 1 x U Disk with Operation Instructions Video

  • 【Voice-Activated Recording】With [THREE GEAR SWITCH], push the switch to the VOR position to start Voice-active recording which will recording when with sound(over 45dbs) and stop recording when there is no sound to ensure full use of the memory. Push the switch to the On(top) position to start normal recording. Push to the Off position to save the recording file.
  • 【Strong Magnetic Audio Recorder】Mini voice recorder with Strong magnetic absorption can be attached to anywhere which makes the recording secretly and easily. And the password protection setting will protect your recording file (set on the computer). This small recording device is ideal for lectures, meetings, interviews, class, obtain evidence etc.
  • 【16GB-3200mAh-500Hours Recording Time】This audio recording device features 3200mAh rechargeable battery allows maximum 365 days stand by time, 500 hours/20days recording time and can save 192Hours recording file at 192KBPS. Intelligent recording function make the recorder saves recording files 5 hours a time. Time for a full recharge: 8 hours.
  • 【Professional Digital Recorder】Connect the audio recorder to your computer to synchronize the time first before recording. Support playing in computer(WAV format) & earphones. Adopt high-definition noise reduction chip to minimize the noise, you will get a high-fidelity recording, and you can record the voice as long as your ear can hear.
  • 【Long Distance Recording】With IP67 waterproof design, you can recording freely outdoor farthest 60ft Long Distance Recording-【What you hear will be recorded】. Note: Package includes operation instruction video. Feel free to contact us via amazon email regards this voice activated recorder, we’ll email back within 12hours and 100% customer satisfied service are assured.

User questions & answers

Question: Does it have a rewind
Answer: The RT28 radio has a local alarm function. You need to use a programming cable to connect to the computer, and edit the side key function into an alarm function. The programming cable is https://www.amazon.com/dp/B00FS8SSPS?ref=myi_title_dp
Question: Does it have a hook to attach a lanyard or keychain
Answer: Yes,you can connect more than 2 radios,Retevis RT28 has been programmed to the same frequency and CTCSS before shipment.they can work together when out of the box. Hope this can help you.If there any question need help,please contact us freely,we are glad to help you. Angela
Question: compatable with windows
Answer: Dear customer, Thank you for contacting us. The RT28 two way radios are featured with UHF frequency. Working out of the box directly with each other. If your have any  further question, please let us know by Amazon email. We are always here to help.
Question: How long can I use after full charge
Answer: I am so glad to inform you that it has the VOX function,so you don’t need to press the PTT button each time.Here is the steps about turn on the VOX: 1.You need to change the channel to 7. 2.Turn off the radio. 3.Press and hold + button,at the same time turn on the radio,it will be issued a tone, welcome to open voice prompts. 4.Long press the plus and minus button,VOX function will be closed Hope I can help you,if you have other issue,please contact me,I am always here for you.

Product features

Long Distance Recording

Adopt high-definition noise reduction chip to minimize the noise, what you hear will be recorded.

Recording While Listening

During audio recording, insert the line control and earphones, you can listen the current recording.

Charging While Recording

Start charging, waiting for 1 minute, then turn on the device to start recording.

Long Hours Recording

Check the manual to set ''Long Hours Recording'', allow you to save more memory while the recording quality level will be lower than normal recording.

One-click Recording

Don't plug the earphones, push the switch to the 'ON' position to start normal recording, push to 'OFF' to save the recording, push to 'VOR' to start Voice-activated Recording, push to 'OFF' to save the recording.

Quick File Transfer-Android Phone

The recording device support quick file transmission from the voice recorder to Android phone through OTG function. Make sure your android phone with OTG function.

Automatic Segment Recording

Intelligent segmentation function, can automatically segment according to the recording time, and automatically generate a file every 5 hours.

Timestamp

Built-in timestamp chip with automatic time synchronization function, and the recording file are named by YY/MM/DD/HH/MM/SS

16GB Voice Activated Recorder

  • 1 x Voice Recorder
  • 1 x earphones
  • 1 x Charging USB Cable
  • 1 x Extension Cable
  • 1 x Android Connector
  • 1 x Type C Connector
  • 1 x User Manual
  • 1 x U Disk with Operation Instructions Video

Digital Voice Recorder Size

  • Dimensions: (3 x 1.2 x 1)inch

Mini Voice Activated Recorder, 16GB Super Long 500 Hours Recording Capacity, 365 Standby Battery, Audio Sound Recording Continuous Listening Device with Strong Magnetic (Black-70 16GB)

Hfuear

Based on 320 reviews Check latest price

Product description

Why you need to choose Our 16GB LONG HOURS VOICE RECORDER?

■ Large Capacity:16GB memory, store up to 1160 hours of recordings, long lasting recording.

■ Long Hours Working:ultra-long life battery 3200mah, over 60 hours of continuous recordings after fully charged.

■Smart voice activated: start recording when detect sound, stop when no sound detected, saving recorder memory, reduce silence time.

■Strong Magnetic:can be attached to any steel surface, discreet in any daily objects.

■ Simple to use:one button to start/save recording, easy to find out the file with time stamp function.

■ Easy Connection:connect the recorder to computer via USB cable, easy to manage files. Connect the recorder to Android phone with OTG connector to check file at your phone.

■Multi-functional:the compact voice recorder with large memory can be a usb driver to store file or use be as MP3 player to play WAV and MP3 format audio files.



Specification:

1. Recording Format: WAV/192kpbs

2. Music Playback Format: WMA/WAV/MP3/etc. audio format

3. Battery: 3200mAh lithium battery Battery charging time: About 5-10 hours

4. Noise-signal ratio:50db

5. USB Interface: USB 2.0 High Speed

6. Memory: built in 16GB

7. Working Temperature: -5 to 40 degrees

8. Recording Sample Rate: 48KHZ

9. Headphone Jack: USB jack

10. Compatible System:Window 98/ME/2K/XP/Vista;Mac OS10 or above

11. Size(inch):2.9 x 0.8 x 0.75 inch (L*W*H)

12. Net Weight: About 2.4oz



WHAT YOU WILL GET:

1 x Voice Recorder, 1 x USB Cable, 1 x User Manual, 1 x line control, 1 x Wired Earphone, 1 x OTG Connector , 1 x Type C Connector, 1 x Video Instruction USB Driver



Note: First use, please update system date and time at computer first. If you have any questions about the device, you can contact us at any time, we will help you.

  • ✅【Professional Voice Recorder】- The hfuear voice recorder has flawless recording quality with an authentic stereo experience. Advanced chip and noise reduction make you enjoy crystal HD sound recording and playback for class, lectures, meeting, speech, interviews, obtain evidence etc.
  • ✅【1160 Hours Long-time Recording】- Large capacity rechargeable 3800mAh battery of this sound recorder allows maximum 365 days stand by time, continuous recording for over 60 hours after each fully powered; 16GB memory can totally store up to 1160 hours recording files at 32kbps. A password locking also makes your voice recorder a safe and secret keeper (set up at computer).
  • ✅【Mini & Easy to Use Activated Recorder】- This mini voice recorder is lightweight and portable, handy and easy to fit in pocket or palm; Very easy to use, Press "on" button to save and "off" button to save. Audio sound activated can record loud enough sound when sound is detected.
  • ✅【Strong Magnetic Absorption Recorder】- Strong magnetic absorption can be attached to anywhere, under bed, office desk, car seat, making the recording easily and secretly; Noise can be reduced by irritation; the recording sound is clear.

User questions & answers

Question: Will this record the loud noises my neighbors constantly make? I need something to give to the apt. mgr
Answer: yes
Question: What if its in a closed area and T.VS are on
Answer: It picks up all sounds
Question: Does recorder have fast forward and reward
Answer: I would not recommend this recorder, it not user friendly and the instructions are written by a person who has English as their first language, it's a digital recorder on the lowest end of function and locating files are nightmare. Yes it does have a crude form of FF and rewind.
Question: How can I contact the seller for help? I have a problem with the recorder
Answer: If you have any problem when use the voice recorder, please refer to following ways. First, check product page (especially Question & Answer part and Related video shorts) and user manual. Second, contact us freely at [email protected] for support and video instruction if needed. Third, contact us with Amazon message. Last, contact us through other ways provided at warranty card.

Product features

Long Distance Recording

High sensitive microphone make the record voice within 50ft clear,match with remote listening device for remote monitor and magnetic features make it can be put anywhere you want

Charging While Recording

The voice recorder supports charging while recording function which can allow you to continue recording when charging the device. Record anytime you want. Please make sure to charge first and then start recording as instructed.

Recording While Listening

The voice recorder can listening while recording. The content being recorded can be heard through a pair of headphones, you won’t miss any important part even though during the recording process.

Long Time Recording

The voice recorder with 3200mAh battery allows maximum 365 days stand by time, continuous recording for over 50 hours at high quality after each fully powered. If use 'Long Hour Recording' function, the recording time will be longer.

Simple to Operate

The recorder can be easily operated with one push recording and unique line control. By pushing on/off button, you can quickly start/save recording. Playback is operated by line control which make the operation much easier

OTG Connection

Support quick file transmission from the device to phone through OTG function. Use the cable we offered , connect OTG type to Android device, connect the micro usb to the mp3 player, and transfer data or download the file.

Segment Recording

The voice recorder can listening while recording. The content being recorded can be heard through a pair of headphones, you won’t miss any important part even though during the recording process.

Time Stamp File

Move, delete or find audio files easily, as all your saved audio files are automatically marked with timestamp (year-month-hour-minute-second), quickly lock out the file you are looking for.

Specifications

  • Memory: 16GB
  • USB: 2.0 High Speed
  • Dimensions: 2.9 x 0.8 x 0.75 inch
  • Playback Formats: WAV/MP3
  • Supported File Formats: WAV/MP3
  • Battery: 3200mAh Headphone Jack: 3.5mm Mini Jack
  • System Compatibility:Windows/2000/XP/7/10; Mac OS; Linux; etc

Note: Please make sure that your mobile support OTG connected function (note that it is only support Android device with Micro USB)

Small Voice Activated Digital Audio Recorder | Super Long 150 Day Standby Battery Life / 14 Day Continuous | 576 Hr Storage Capacity 16GB | Functional Portable Phone/Device USB Charger/Power Bank

SOTA Surveillance

Based on 198 reviews Check latest price

Product description

Audio Recorder 16GB Power Bank / Functional Portable Phone / Device USB Charger



The USR-500 small audio recorder is the newest professional grade audio recorder in our arsenal of voice activated audio recorders and listening devices. It boasts the longest battery life on the market - about 150 days in standby mode, 14 days in continuous mode and only takes around 5 hours to charge - is extremely easy to use and records crystal clear audio, even at a distance. Making it the perfect audio recorder for small places like cars, large rooms or even a warehouse environment. It is a functional Power bank / portable charger



Includes



1 x Digital Voice Recorder

1 x User Manual

Quick start guide written by our product specialists

1 x Magnet

1x OTG Cable

1x Adapter

1 x USB cable

Lifetime Technical Support



Note: Date and time stamp software is only compatible with windows based computers. Mac users will need to use a windows PC for initial date and time setup,



*****ALL MANUALS, TECH SUPPORT & PRODUCT INFORMATION ARE IN ENGLISH ONLY*****

  • PROFESSIONAL FEATURES - Up to 576 hours of recording capacity. There are no noises or indicator lights while recording. Choose from either continuous or voice activated modes. It has an amazing 150 Day Battery Life In VOS mode and 14 Days of continuous recording. There is a magnet included to easily secure to metallic surfaces.
  • VOICE ACTIVATED RECORDING - Set the recording device where you want it, and then forget it. It'll turn on the next time it hears sound thanks to it’s voice activation feature. When the sound stops, the little audio recorder goes into a sleep mode to save battery life.
  • EASILY LISTEN TO YOUR RECORDINGS - When you are ready to listen to your recordings You have two options. Simply connect to your computer to listen to the audio files or use the Included OTG cable to listen on your "OTG capable" android device including smart phones and tablets (Iphone users will need to use a computer). Recordings can also be saved to your computer, SD card, thumb drive etc. and/or deleted from the audio recorder.
  • TIME AND DATE STAMP - Set the date and time stamp to organize your recordings | This long battery life audio recorder is small and compact measuring in at only 3.6" x 1" x 0.8" and has a strong magnetic included
  • 100% GUARANTEED - FREE Premium Tech Support for life by phone, Email or Live Chat | One Year Warranty Included | We have also included a detailed quick start guide written in clear English by our product experts | Buy with confidence we are here to help! | ALL MANUALS, TECH SUPPORT & PRODUCT INFORMATION ARE IN ENGLISH ONLY

User questions & answers

Question: Windows only? com'on! this is exactly what i need, but i don't do windows
Answer: Windows is needed to set the date and time. You can access the data on a mac
Question: how do you contact tech support? this will not show up on my computer
Answer: You doenload an app, you shuold have instructions with customer care number, otherwise contact online thru Amazon support
Question: Hello does this device live stream
Answer: No
Question: Does this device have any visible lights on it when it is not plugged in but in record mode
Answer: There’s a red light that shows when it’s charging that’s it

Voice Recorder, Voice Activated Recorders 50 Hours Continuously Record-175 Hours Recording Memory, 16GB Mini Recording Device MP3, 1.5 Hours Battery Charge Time Audio Recorder for Lecture Meeting

H+Y

Based on 60 reviews Check latest price

Product description





Product Features

1. Built-in 16GB memory, it can storage up to 175 hours of recording files.

2. Our recorder will auto-save the current recording when the battery run out.

3. USB rechargeable battery, charge time is about 1.5 hours, and it also can recording during charging.

4. The audio recorder working, the indicator light is off.

5. Connect the recorder to the headphones and adapter, you can listen the recordings or songs.

6. Zinc alloy black mirror design, stylish and durable.

7. Set the voice activation recording function on TXT document, then you can use this function. The voice activation setting level:0-5. When the voice above and beyond 50db, the recorder catches the voice.

8. Portable design, it can inserted in the key ring or rope, you can put it in the pocket, wallet or suitcase.

9. After fully charged, can recording of about 50 hours, playback with headphones of about 35 hours



Product Specifications:

Audio format: WAV

Recording quality: 192 kbps

Computer systems compatible with this device: Windows XP and Vista / 2K / ME

Battery: 250 mAh rechargeable battery

Charging time:1.5 hours ( The charger must be 5V, 1A. )

Dimensions: 1.61 * 1.38 * 0.35 inches

Weight: 20 g

Color: Black



Package List:

Voice recorder * 1

USB cable* 1

Earphone adapter* 1

Earphones* 1

English manual* 1

  • ➥Large 16GB Memory: This voice recorder can store up to 175 hours of recording, 999 recording files. We have improved battery performance, after 1.5 hours fully charged, the recorder can continuously record 50 hours, provided long recording time for you. Our portable recording device suitable for lessons, meetings, interviews and speeches.
  • ➥Voice Activated Function: The recorder is equipped with a voice activated sensor in the internal parts. It automatically starts recording only after detecting sound. To save more recorder disk space. It is also equipped with a sensitive condenser microphone, which provides high quality recording, better than traditional recorders.
  • ➥Easy to Use & Rechargeable: One button to quickly start and save a recording, time stamp is the recording file name, more easy to find out the file accurately. This recording device is suitable for beginners. When the battery is low, the current recording will be auto-saved before the voice recorder is turned off. Support recording while charging.
  • ➥Portable Mini Voice Recorder: portable design, it is convenient for you, you can take this audio recorder to anywhere, listen recordings or songs on recorder anytime. What’s more, connect the voice recorder to computer, you can manage recording files, playback, delete or backup. Size: 1.61 * 1.38 * 0.35 inches, weigh: 20g.
  • ➥Note & Customer Service: Two pre-installed testing songs in the recorder disk, you can test whether the product is working properly. Do not hesitate to contact our support team for any questions. We will reply your email in 24hrs as soon as possible.

User questions & answers

Question: How do I listen to my recordings on a computer
Answer: You can connect the recorder to computer, open the RECORD folder, duoble click the recording to play it on your computer default player.
Question: Can it record 8 hours straight
Answer: Yes, it can record about 50 hours straight.
Question: Best settings to use for voice activated feature? As one of the comments mentioned will be for evidence
Answer: Hi, you can read the manual, then set the voice activated function.
Question: please help asap? i can't find my user manual and don't see a vid on how to set up voice activation or etc. on txt online anywhere
Answer: You can contact seller to get the manual.

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