10 best bw intercoms

Product description

• Surface-mount door intercom works with a master intercom (sold separately) to enable audio communication with visitors
• For use with the Aiphone LEF and LEM Series master intercoms (sold separately)
• Weather-resistant black plastic faceplate surface mounts to a single-gang box using the included mounting hardware

User questions & answers

Question:	it will work with pacific model af-100 amplifier
Answer:	yes
Question:	Can I buzz people in with this
Answer:	This camera has 14GB of internal memory (No SD card slot)
Question:	Will this work as an interior room to room intercom system
Answer:	It can use bluetooth or WiFi between the device and a phone. No Internet (WiFi) oe data is needed or required. Device establishes it's own private WiFi connection.
Question:	If possible to connect this unit with 1 speakear the volume is not to loud in big area is any wire to use? Trying to use this unit in classroom
Answer:	It has a 1/4" - 20 tripod mount thread

• [ Excellent Signal ] Clear sound quality and long range. An enhanced signal with 5280 feet range helps ensure crisp sound quality. The most trusted wireless intercom system for home!
• [ 10 Channel and 3 Digital Code ] 10 channels and 3 digital codes in a secure wireless intercom system. Features an enhanced anti-interference and can work with other intercoms with the same digital channel code!
• [ 100% Satisfaction ] Love it or your money back! We provide a lifetime service for our intercom. Please feel free to contact us if you have any questions or concerns about your purchase.
• [ Easy to Use with Detailed Manual ] Features include Monitor, Talk, VOX (Voice Operated Exchange), Group, and Calling function. Increase/lower volume too! This intercom system is easier to use than others with user-friendly multi-functions and included step-by-step instructions!
• [ Supported by Power Bank for Outdoor ] This device is compatible with Power Bank (5V 1A) making it easy to take these intercoms any place you want. Besides, it designed with back hole for wall mounting.

User questions & answers

Question:	Can the call buzzer be muted or the volume adjusted
Answer:	Hi, Thank you for your attention for Wuloo wireless intercom system. We are sorry for that the call buzzer can not be muted, but our intercom system has the volume button that you can press VOL+ or VOL- to adjust. If you have any other questions, please feel free to contact us, we are always happy to service for you. Have a nice day. Wuloo Customer Service Team
Question:	Can conversation be made privately without speakout
Answer:	I am not so good in sending back products I bought I should send the Wulo Intercoms back because it is a piece of junk
Question:	Does the other person have to press a button to hear your voice or can you intercom and it comes up without having the person accept? It just comes on
Answer:	Hi, Thank you for your attention for Wuloo intercom system. This intercom is one-single way communication system, it need to press and hold the TALK button while speaking, after finish speaking and release the button and then the others can reply to you. However, if your want to talk with each other hands free, you can use the VOX mode. Please download the manual on product page part [ Technical Specification ] for the details of VOX mode. If you have any other questions, please feel free to contact us, we are always happy to service for you. Have a nice day. Wuloo Customer Service Team
Question:	Is it possible for others to hear our conversation without knowing it
Answer:	Hi dear, Thank you for your interest in our products. This is rarely the case, unless you are on the same frequency channel. If so, you can change the channel code on the device. If your device is in monitored mode, the light will be bright red. If you have any other questions, please feel free to contact us, we are always happy to service for you. Have a nice day. Wuloo Customer Service

Product features

Usage Scenarios

1. Channel key does not light----Check the AC power cord. Is it connected properly? Or change AC adapter to test.

2. Cannot receive response---- Please make sure the intercom set to designated channel? If not, be sure to release TALK when you are not speaking into the intercom. Also be sure to press TALK or CALL when the intercom is in MONITOR mode.

3. Cannot talk to another intercom---- Are both intercoms set to the same channel and code? Please make sure they are properly set up and that you’ve waited until the other user has finished talking.

4.Strong and continuous "beep" sound, static noise ----Move intercoms further apart to eliminate audio feedback. Or, change your intercom to another channel or code.

5. Unit doesn't work----Try the units in a different location. If the units work in a different location but not in your home, there may be a problem with your home concrete wall.

6. Cannot communicate----Confirm both units are set to the same channel and code when you want to communicate. Or, change locations by using Power Bank and moving to other locations for better reception and transmission. Or change the channel code.

Note:

1.The intercom system is a real-time communication system which has no memory or storage function. Because of this, you cannot receive any information while you are talking with others. Additionally, you cannot speak to another user if they are speaking at the same time.

2. Please note that you will need to set the same channel and code if you want 2 intercom stations to receive communication. It also means any other intercoms can also communicate if they have same channel code. For example, your neighbors may be able to interfere with your intercom system. We suggest setting another channel or code to avoid interference.

3. A tip for setting your home intercom system

For example, let’s say you have a 4 station intercom system for your home for different rooms. You can set all 4 stations with the same code A(code A, B or C are choices), then you set different channels for all 4 stations. In this case, you can just click a channel number to call others without set code because your codes are all the same. If your system receives interference, you can change it to another code for all of your stations without changing every station's channel making this a very convenient option.

4. We sincerely suggest that you can read User Manual before you use our intercom system.

• Warm Tip:

Our company is a professional company for FM wireless products. All of our products have passed FCC certification, the FCC ID for this product is 2AOBR-666, you can use it without any worries.

• [ Home Intercom system ] 16 channels secure wireless intercom system. Features an enhanced anti-interference and can work with other intercoms with the same digital channel code! 17mm ultra-thin home intercom, Mini fuselage, Small and exquisite, Crystal Voice, Ease to Communicate.
• [ Excellent Signal ] 1.5 Miles Long-range Intercom System for House/Camping/Travel. An enhanced signal with a 6000 feet range helps ensure crisp sound quality. The most trusted wireless intercom system for home!
• [ Easy to Use] Features include Talk, VOX (Voice Operated Exchange) function can realize hands-free operation through voice activation. Increase/lower volume, power switch. This intercom system is easier to use than others with user-friendly multi-functions and included step-by-step instructions!
• [ Application scenario ] This wireless intercom system can use in a wide range, making them ideal for hotels, restaurants, shopping malls, warehouses, family service, security, school service. This wireless home intercom has got the latest FCC certification.
• WARM TIPS: THIS INTERCOM CAN'T WORK WITH OTHER PRODUCT! PRODUCT SIZE: 4.2*2.1*0.7 inches

User questions & answers

Question:	Does this need a special headset/headphones? Regular stereo headsets/headphones do not work
Answer:	They are meant to be four free-standing intercoms. Hold one near you fact to speak into it. I find that I can hear just fine when the unit is lying on my desk. No headphones needed.
Question:	How does the monitor function operate
Answer:	First, make the intercom in the turn off status, second, press and hold down the "PTT" & "CH+" button then press the power button to turn on the intercom. You will hear one "beep", it means the VOX function is opened.
Question:	The "manual" leaves a lot to be desired. How do we use this as a monitor
Answer:	You should press and hold the monitor key (CH+).
Question:	Where can I get a headset for this radio
Answer:	amazon

Product features

Features:

1. Long-range: Effective distance approx. 1-8 Mile (in ideal condition, range will diminish based on walls, floors, etc), It integrates the latest technology to be the most trusted intercom system for home and office.

2. Voice Crystal Clear: Voice activation (VOX) allows you to talk hands-free. Due to anti-interference signal technology and secret digital channel, the wireless intercom system works perfectly for you in any place.

3. Easy to set up and use, no installation requirement, You can take it to anywhere you want.

4. Wide Using Range and Portable: This wireless intercom system can use in a wide range, home, office, outdoor, etc. It can also charge on the computer, mobile power, or on the car with a USB plug, so you can take devices to any place you want.

USB Charging

Multiple charging ways for you to recharge it anytime, anywhere

1. You can charge it on the base with the battery.

2. You can charge it on the computer, mobile power or on the car with USB plug too.

High-quality batteries

High-quality batteries are safe, reliable and durable

Unique rounded design

The antenna design is reinforced with 30-degree rounded corners to effectively resolve the impact force

Double PTT Button

Two PTT button to make the operation more convenient

Pregnant

Elderly/Patient/Disabled

Kids/Baby

Business Man

Traveling

Camping

Cycling

Hiking

How to open the Voice Activation(VOX) function?

1. Choose the sensitivity level through the channel 1-9.

2.Turn off the intercoms after choose the sensitivity level.

Note:

The voice activation function can choose 1-9 sensitivity.

You can choose the sensitivity of the walkie-talkie according to the environment you are in. The greater the sensitivity, the more sound it receives.

How to open the VOX function?

Press and hold down the [CH+] and Power buttons at the same time to turn on the VOX function.

How to open the VOX function?

You will hear one "beep" and see the breathing light to be flashing. Try to talk with others without press the PTT button. It means the VOX is open if you can talk with other intercoms without to press the button.

How to open the VOX function?

If you wanna turn off the VOX function, please turn off the intercom, then do the same operation as the "step 2".

• [ Excellent Signal ] Home intercom system with clear sound quality and long range. An enhanced signal with 5280 feet range helps ensure crisp sound quality. The most trusted wireless intercom system for home!
• [ 10 Channel and 3 Digital Code ] 10 channels and 3 digital codes in a secure wireless home intercom system. Features an enhanced anti-interference and can work with other intercoms with the same digital channel code!
• [ 100% Satisfaction ] Love it or your money back! We provide a lifetime service for Wuloo home intercom system. Please feel free to contact us if you have any questions or concerns about your purchase.
• [ Easy to Use with Detailed Manual ] This home intercom system have features include Monitor, Talk, VOX (Voice Operated Exchange), Group, and Calling function. Increase/lower volume too! This intercom system is easier to use than others with user-friendly multi-functions and included step-by-step instructions!
• [ Supported by Power Bank for Outdoor ] This home intercom system is compatible with Power Bank (5V 1A) making it easy to take these intercoms any place you want. Besides, it designed with back hole for wall mounting.

User questions & answers

Question:	Will rain destroy the unit
Answer:	Yes these are not weatherproof, however Amazon sells a weatherproof unit desperately that will work with these indoor unitd
Question:	Will it be used with batteries
Answer:	Hi dear, Thank you for your interest in our products. This intercom can’t be used with batteries, but it supports power bank supply. If you have any other questions, please feel free to contact us, we are always happy to service for you. Have a nice day. Wuloo Customer Service
Question:	how many intercom units can be run on one system? if you can run more than four can you buy separate units to add to the system
Answer:	Hi Friend, thanks for your attention for our products. Yes, this intercom have 10 channel and 3 codes, so it can be run more than four. but we suggest that you run it less than 10 units in one system. Besides, you can buy separate units to add to the system, it's easy to add it. If you need a intercom system more than 10 units, we suggest another model in our sotore, here is the link : https://www.amazon.com/Wuloo-Intercoms-Wireless-Communication-4Stations/dp/B07H2XR6MP
Question:	Hi, please tell me about the security on these. Can someone eavesdrop on our conversations? Is the communication encrypted
Answer:	I purchased these units less than two months ago. Recently I have heard multiple conversations coming through the intercom. The other night I had to unplug my units because of the chatter.

Product features

Usage Scenarios

1. Channel key does not light----Check the AC power cord. Is it connected properly? Or change AC adapter to test.

2. Cannot receive response---- Please make sure the intercom set to designated channel? If not, be sure to release TALK when you are not speaking into the intercom. Also be sure to press TALK or CALL when the intercom is in MONITOR mode.

3. Cannot talk to another intercom---- Are both intercoms set to the same channel and code? Please make sure they are properly set up and that you’ve waited until the other user has finished talking.

4.Strong and continuous "beep" sound, static noise ----Move intercoms further apart to eliminate audio feedback. Or, change your intercom to another channel or code.

5. Unit doesn't work----Try the units in a different location. If the units work in a different location but not in your home, there may be a problem with your home concrete wall.

6. Cannot communicate----Confirm both units are set to the same channel and code when you want to communicate. Or, change locations by using Power Bank and moving to other locations for better reception and transmission. Or change the channel code.

Note:

1.The intercom system is a real-time communication system which has no memory or storage function. Because of this, you cannot receive any information while you are talking with others. Additionally, you cannot speak to another user if they are speaking at the same time.

2. Please note that you will need to set the same channel and code if you want 2 intercom stations to receive communication. It also means any other intercoms can also communicate if they have same channel code. For example, your neighbors may be able to interfere with your intercom system. We suggest setting another channel or code to avoid interference.

3. A tip for setting your home intercom system

For example, let’s say you have a 4 station intercom system for your home for different rooms. You can set all 4 stations with the same code A(code A, B or C are choices), then you set different channels for all 4 stations. In this case, you can just click a channel number to call others without set code because your codes are all the same. If your system receives interference, you can change it to another code for all of your stations without changing every station's channel making this a very convenient option.

4. We sincerely suggest that you can read User Manual before you use our intercom system.

• Warm Tip:

Our company is a professional company for FM wireless products. All of our products have passed FCC certification, the FCC ID for this product is 2AOBR-666, you can use it without any worries.

Product description

BW Technologies GasAlertMax XT II confined space kit. Kit includes GasAlertMax XT II detector (percent LEL, O2, H2S, CO), IR connectivity kit, 0.5 LPM regulator, sampling probe, calibration gas (2.5 percent CH4, 18 percent O2, 25 ppm H2S, 100 ppm CO). GasAlertMax XT II is the smart, simple, economical way to compliance. Simple operation, with SmartSample pump. GasAlertMax XT II reliably monitors up to four hazards and combines straightforward one-button operation with our robust, motorized pump for intelligent, remote sampling, ideal for confined spaces. The GasAlertMax XT II is fully compatible with MicroDock II automated test and calibration system. Continuous LCD shows real-time gas concentrations. Water-resistant. Simple automatic calibration procedure; compatible with BW MicroDock II automatic test and calibration station. Full function self-test of sensor, battery status, circuit integrity and audible/visual alarms on start up. Bright wide-angled visual alarm bars. Built-in concussion-proof boot. Humidity: 10 - 100 percent RH (non-condensing). Alarms: Visual, vibrating, audible (95dB); Low, High, STEL, TWA, OL (over limit), Low Battery, Pump. Tests: Audible/visual alarms on activation, sensors, battery, pump and circuitry (continuous). Typical battery life: 13 hours at 32 degree F/0 degree C, 8 hours at -4 degree F/-20 degree C, recharges in 6 hours. Pump draw: Sample from up to 75-feet/23-meters. Certifications and approvals: Class I, Div. 1, Gr. A, B, C, D; IECEx: Ga Ex ia IIC T4; ATEX: CE II 1 G Ga Ex ia IIC T4; Br Ex ia IIC T4. Measuring range for Combustible gases are 0-100 percent LEL and 0-5.0 percent v/v; for O2 is 0-30.0 percent; for H2S is 0-200 ppm and for CO is 0-1000 ppm. Resolution for combustible gases is 1 percent and 0.1 percent; for O2 is 0.1 percent; for H2S and Co is 1 ppm.

• Integrated sampling pump with reliable diaphragm technology
• Best in class block detection with semi-conductor pressure sensor
• Multi-language support in English, French, German, Spanish and Portuguese
• Conveniently manage your detector with Fleet Manager II; equipped with standard datalogging and event logging
• Full two year warranty including all sensors
• Integrated sampling pump with reliable diaphragm technology
• Multi-language support in English, French, German, Spanish and Portuguese

User questions & answers

Question:	How big is the calibration gas bottle? Can I pack it in my checked bag on the plane
Answer:	You don't.
Question:	Hi, I am Electrical Engineer from Puerto Rico. Does the system come with electrical calibration test results. Like voltage meters. Or is by cilinder
Answer:	It needs 5v of power and tbh u could just hot glue it to a rc car
Question:	We are in a hurry so we nned to know if we can ask for an air delivery (like next day delivery
Answer:	I would say about 50-80 meters (or 100-150 feet). If you still have video at 300 feet, congratulations. This is designed for short range small quads.
Question:	did the gaz bottle come include
Answer:	The smallest size I see the connector comes in...note sure of the size...but I cut and matched the color wires and changed the connector to fit my receiver

Product description

Model 3404 4 Wire Apartment Stations The Pacific 3404 system is designed for new construction as well as renovations. Type: Standard Finish: High impact white plastic Buttons: Momentary action button marked talk, listen, and door Size: 7" H x 6"W x 13/16 D Mounting: Surfaces mounts directly to single or dual electrical box, or directly to apartment wall Electrical: 45 Ohm speaker-mic 4 wire terminals This Pacific Electronics apartment station is a universal replacement for Pacific, and Tek Tone Systems

• Size: 7" H x 6"W x 13/16 D
• Buttons: Momentary action button marked talk,listen, and door
• Electrical: 45 Ohm speaker-mic 4 wire terminals

User questions & answers

Question:	Is there a way to make it louder? We can hardly hear it
Answer:	Yes ,also the connection is so easy, i recommend this handy item because its useful in house or office.
Question:	Can this replace a nutone ik15 system?What about the outside unit
Answer:	No. You plug in the base unit to the wall. The charging unit for the other device is also plugged into a wall outlet.
Question:	can I use a 3404 with a Jeron 5025 controller
Answer:	Yes, The betlpack features include:Headset volume controlCall buttonA/B channel selectionMic on/off button
Question:	does this unit replace a tektone ir 207? Is the ringer a buzzer, a bell, two tone
Answer:	I haven’t seen an expiration date but I have Revlon creme lipsticks I have had for 5 years with no change in smell or drying out.

• [Simple Installation & Expansion!] Secure this outdoor doorbell chime to your door or wall with the included screws for ultimate security. The wireless intercom doorbell is expandable, so you can extend nearly any indoor or outdoor system, even to a set of 2 transmitters and receivers each!
• [Long Range & Easy Sound Adjustments] This wireless doorbell transmits at a distance of up to 1/2 Mile! Customize your doorbell with 20 kinds of chimes and 3 volume levels!
• [100% Satisfaction ] Love it or your money back! We provide a lifetime service for our intercom doorbell. Please feel free to contact us if you have any questions or concerns about your purchase.
• [Anti-interference & Multifunctional] This doorbell doubles as an FM wireless intercom doorbell that won’t be affected by WiFi disruptions! It also won’t interfere with your other smart devices. Buy two receivers and use as a set of walkie-talkies, or use the mute mode on the indoor intercomunicador to turn off the unit when you want silence.
• [IPX55 Waterproof and Built-in Rechargeable Battery] The Wuloo intercom doorbell is waterproof even in bad weather conditions like snow and rainstorms. Features low power consumption, built-in 2000mA battery, and an included charging base! Full battery lasts 4-6 months for the transmitter, and indoor machine lasts 1-2 days on a full charge.

User questions & answers

Question:	What is the Battery charging power compatibility ( volts
Answer:	Hi, Thank you for your attention for Wuloo wireless doorbell chime. Both the indoor uni and outdoor unit are built-in 2000 mA rechargeable battery and the package comes with charger base and adapter cable. The adapter cable support 100-240 volt that can work internationally. Its adapter is an American standard plug, you may need to buy a plug converter as needed. If you have any other questions, please feel free to contact us, we are always happy to service for you. Have a nice day. Wuloo Customer Service Team
Question:	Will this work in a 13 story building, with concrete walls
Answer:	Hi, Thank you for your attention for Wuloo driveway alarm. The signal range of the doorbell is 1/2 mile, which applies when the device is tested in an open space. The range will change depending on your unique circumstances. Obstructions like a thick wall or metal barrier will decrease the range. If you have any other questions, please feel free to contact us, we are always happy to service for you. Have a nice day. Wuloo Customer Service Team
Question:	Is it possible to provide some type of wired power for the outdoor unit so it can always be charged
Answer:	Hi, Thank you for your attention for Wuloo wireless doorbell chime. We are sorry for that our doorbell system cannot be plugged directly into the power cord for charging, you have to charge it on the charging base that is included in the package. The indoor unit comes with the charging base, and you can also put the outdoor unit on it to charge while it runs out of power. The outdoor unit will work for 4-6 moths when fully charged, since it will enter sleeping mode to save power if it does not detect any operations within 25 seconds. But outdoor unit only have 20% power when you get it, so please fully charge it at first before installation. If you have any other questions, please feel free to contact us, we are always happy to service for you. Have a nice day. Wuloo Customer Service Team
Question:	I have trees between the units. About 300 fwwt. Will this work
Answer:	Hi, Thank you for your attention for Wuloo intercom doorbell. The signal range of this doorbell is 1/2 mile when the device is tested in an open space. The range will change depending on your unique circumstances. Obstructions like a thick forest or metal barrier will decrease the range. However, through vigorous testing, we’ve found this alarm system to be better than other intercom doorbell products. And we think there is no problem for our doorbell work in 300 feet. If you have any other questions, please feel free to contact us, we are always happy to service for you. Have a nice day. Wuloo Customer Service Team

Product features

Suit Occations

1) Set the same channel (A, B, or C) for both the indoor and outdoor machine;

2) Long press the ON/OFF button of the indoor machine to turn it on;

3) Attach the outdoor machine to the exterior of your front door. Once the chime rings, click the ON\OFF button or the TALK button of the indoor chime to stop the ringing. To speak to the visitor, press and hold the TALK key to communicate with the outdoor device. Release the TALK button after speaking to listen to any response from outside. The visitor simply press and hold the TALK key to respond.

Note:

1.The factory setting of the indoor machine is in the shutdown state. After receiving the goods, please long press ON/OFF key button for 3 seconds to turn on the indoor unit.

2.Outdoor machine will return to sleeping mode if it does not detect action within 25 seconds. Please click CALL button on the outdoor machine to activate it. Each conversation must be initiated by outdoor machine, and then the indoor machine can talk with the outdoor unit after receiving the ring.

3.This wireless intercom doorbell is a unidirectional transmission system with the same frequency. You cannot speak to your visitor and listen to them at the same time. Please wait until the visitor is done speaking to press the TALK key to respond.

4. Please note that you will need to set the same channel if you want 2 intercom doorbells to receive communication. It also means any other FM wireless intercom device can communicate with your system if they have the same frequency. For example, your neighbors may be able to interfere with your intercom system if they are using intercom device. We suggest setting your system to another channel to avoid interference.

Troubleshooting:

Problem 1: Does not work

Possible solution 1: Check if the indoor machine turned on. If not, please long press the ON/OFF key of the indoor machine to activate it.

Possible solution 2: Check if both devices are charged. Charge devices at least 1 hour and try again.

Problem 2: Cannot hear response

Possible solution 1: Check if the 2 devices are on the same channel. If not, set them to the same channel.

• Warm Tip: Our company is a professional company for FM wireless products. All of our products have passed FCC certification, the FCC ID for this product is 2AQQS-T1810, you can use it without any worries.

• Two-way voice intercom communications technology automatic identification of processing speech signals during a call does not require any action;this model is 110 Voltage
• Auto dual-way intercommunication without pressing any button;anti-interference and noise-free function
• Dual-way audio record output;dedicated anti-side tone processing chip with auto-mute function
• Has special side tone processing chip and the movement noise function can effectively improve the noise
• The voice from this system is clear and natural;this system has top-quality speaker and high-sensitive microphone. especially the metal tube microphone is deal for the counter and the dual-way intercommunication

User questions & answers

Question:	Can the customer part of the unit be used in an outdoor environment at least where we have a 4 foot overhang? May get a little wet but not constantly
Answer:	I would not consider it weather proof but it should be OK for a while if it is just getting a misting from time to time but if it getting wet I dont think it will last long. The housing is plastic but I did not open it up to look at the microphone element
Question:	How can this be cleaned
Answer:	Hello, You can wipe the surface of RT9908 window speaker with alcohol wipes, the speakers are not waterproof. Sincerely, Angela
Question:	What is the diameter of the outside speaker
Answer:	The diameter of the Retevis RT-9908 outside speaker is 3 inches (7.8 cm).Hope this can help you,if any question need help,just feel free to contact us by Amazon email,we will do our best to help you Angela
Question:	Is there anything we can do to stop the buzzing in this unit. We can't use it for the interference with this sound
Answer:	I am sorry to hear that, please no worries, and check as follow to solve your issue: 1.Check if the speaker connect well with the intercom？ 2.To turn down the volume and to test if pick up more noise. 3.Keep about 5 cm distance with the mic to speak. If there any issue need help ,please feel free to contact us via amazon, we will do our best to help you solve the issue.

Product features

Quality diaphragm, clear call

Retevis RT-9908 window intercom system has the quality diaphragm, it will keep your communication clearly and smoothly.

Smart microphone

Excellent metallic material microphone not only transmit clearly,but also could adjust height according to your needs.

Length enough

187 cm outside miscrophone line will offer you more convenient.Easy to install and use.

Clearly instruction and easy to use

There are clearly instruction for every button,and it is easy to use for your group.Tip lights will remind you if your voice have been transmitted successfully.

Clear and distinguished voice

Comprehensive application of electro-acoustic technology experience, the selection of high performance electro-acoustic circuit design, the output power up to 3W, voice clear and loud voice distinguished high

Streamline design

Main unit is made of luxurious aluminum alloy and internal microphone for extension. One-wire connection and simple installation

What you will get

1 x Retevis RT-9908 Dual-way counter interphone

1 x External speaker

1 x Charger

1 x English User manual

• ⚡【Lifetime Usage】:- We have 50 + years experience for producing intercom, our factory is one of the leaders in pushing this industry. We only produce product of superior quality to give the buyers the best using experience. Our wireless intercom has passed all the professional certificate, like FCC, CE, Rosh, etc. In order to show our confidence of our products, We provide a worry-free purchase to let you no need to worry about any quality problem
• ⚡【Multiple Channels and Function】: - This wireless intercom system for home has 10 channels (made of Advanced anti-interference technology) and 3 secret digital codes to meet your different communication requirements in different situations, widely used in house, office, gate, restaurant, etc. Our intercom system has 4 main functions: monitor, talk, Group and call. Widely used at home or office, make your life and work communication become more convenient
• ⚡【Long Range + Radio Sound】: - Our new release long range house intercom system is inserted superior crisp Chip to provide you the crystal sound quality and prevent interference. The effective distance of this intercoms wireless is 1 to 1. 5 mile up to the actual circumstance. Perfect for Department to department, room to room, building to building communication
• ⚡【No Need Battery】: - This wireless intercoms is powered by a USB cable, which is easy for connected by power bank. No need battery charging or phone wire on the wall. Suitable for both indoor and outdoor usage, and help you keep your space in original shape, clean and you can take it to any place you want
• ⚡【What you will get】: - 4 x wireless intercom system, 4 x USB cables, 4 x USB wall chargers, 400% satisfied service. Please contact us if you have any question in usage or need any help, We are very willing to solve all the problem for you.

User questions & answers

Question:	Can other of the same units be purchased to add to this system
Answer:	yes
Question:	Is there a doorbell two way communicator for these units
Answer:	Not a doorbell, but it has unit to unit calling, and group calling (like if you had 2+units).
Question:	Does this require wifi
Answer:	No need wifi.
Question:	does device need to be plugged in charger the whole time for it to work? tried charging mine but once off the USB it does not work
Answer:	Yes, it is a power cable, instead of a charging cable. The intercoms device need to be plugged in charger the whole time for it to work

Product description

Features:

1.Long Range: Effective distance Approx. 1/2mile (in ideal condition, range will diminish based on walls, floors, etc).

2.Multi-Channel (7 channel): 7 channels will be provide to you for calling family or office members, delivering announcements, or emergency calls. It can be choose one to one communication or one to all simultaneously.

3.Easy to set up and use, no installation requirement, you can take it to anywhere you want.

4.Monitor function continuously for 24 Hours at once .

5.Frequency Range: 462.6250 - 467.6125 (MHz)

Digital Code (1/2/3):734N/732N/731N

Full Expandable:

Two intercom stations included but you can expand to an unlimited additional intercom stations.

Package Includes:

2*Intercom Stations

2*AC Power Adapters

Family Application

1.You can put the intercom to anywhere, bedroom, kitchen, baby room, living room, elder room, garage etc.

2.You can set up different channel code for each intercom or at same channel code.

3.You can make a group call or a private dialogue to different room.

4.You can monitor the room as you want by using monitor (24 hours once time) or VOX function.

5.You can talk with two way radio if you change radio frequency to Intercom requirement.

Office Application

1.You should set different channel code for different department and make a record. 2.You can make a private meeting with the specific people .

3.You can make a emergency notice or quickly meeting by the group call function. 4.Different department can make a communication freely.

Outdoor Activity Application

1.This intercom can be charged by mobile power bank(5V 1A).

2.You can take intercom to anywhere, No WIFI requirement.

3.Walkie Talkie System for Outdoor Activity.

Size : 7.2 x 4.3 x 1.9 inch

• The Hosmart Advantage: 30 + years of wireless intercom home system technology produced by our leading factory.Pass Safety Certification and Lifetime Quality Warranty: The wireless intercom system passed FCC, CE, ROSH Certified. In order to ensure your benefit, we will give you a lifetime warranty.
• Long Range and Multi-Channel: 2019 new release 1/2 mile long range (in ideal situations) 7 channel secure wireless intercom system. It integrates the latest technology to be the most trusted intercom system for home and office.
• Individually Function and Easy Using: Powerful and Individually Function, Monitor, Talk, VOX(Voice Operated Exchange), Group call function. Monitor function can monitor 24 hours at once. Group function (conference call) can call all the stations in intercom system.
• Voice Crystal Clear and Secure Digital Communication: Duo to anti-interference signal technology and secret digital channel, the wireless intercom system works perfectly for you in any place, secure digital communication, connect ability to our walkie talkies and wireless intercom doorbell system.
• Wide Using Range and Support by Power Bank: This wireless intercom system can use in a wide range, home, office, outdoor etc. It can support by power bank (5V 1A) so you can take devices to any place you want. And it can work with other brand devices by the same digital channel code.

User questions & answers

Question:	Is this fm or does it use the ac in your house
Answer:	Not exactly. This is a secure 460MHz digital communication. And they used a secure 5V/1A AC adaptor in our home.
Question:	While on monitor mode, can I press a button to talk to the room I've been monitoring
Answer:	Dears, you can talk to the others room,but it'll out of the monitor mode.Thanks
Question:	Will it get signal in a metal shed without interference
Answer:	Yes....we put it in our shop, which is a room that has insulated walls in the back sections of a 30x40 pole barn. The pole barn is over 600 feet away from the house and we have not had any problem with it what so ever. We can not use our cell phones in there, cant get any signal for them.
Question:	Does this work on batteries
Answer:	before i open the box i saw that batteries are not included and i need to purchase a mobile phone battery ?? how is it powered