14 best classroom voice amplifiers

• HIGH-POWERED AMP : 30W output power & Neodymium magnet speaker transmit your voice louder, clearer and farther without noise or distortion
• COMPACT & LIGHT : Only 3.35 x 5.28 x 1.81in & 0.65 lb. This compact & light feature assures high mobility.
• DURABLE & SOLID BODY : Designed to protect against external shocks, drops, dusts and drizzle
• LONG RUN-TIME & SHORT CHARGING TIME : Runs for max. 12 hours & takes about 3 hours for charging
• PERFECT FOR : Coaches, Instructors, Teachers, Trainers, Tour guides, Youtubers, VJs, Public Speakers, Factories, Hospitals, Senior homes, Outdoor activities, Yoga classes, Gym, and any place & occasion where your delicate voice needs to be heard clearly and loudly

User questions & answers

Question:	Hi, does the g100 come with the same amplifier/speaker as the newer g120 ? thanks
Answer:	Yes basically the speaker is same with G120. The difference is that G120 has upper version of IC.
Question:	I am looking to use this for outside practice for a dance team. I will be up in an observation deck...would they be able to hear me
Answer:	It is not as loud as a bullhorn
Question:	Can you talk on the phone while using this speaker or will it result in feedback noise? Looking to buy for someone that has very little voice left
Answer:	Hello Stephanie! There should be no problem talking on a phone while using / thru G100. Feedback noise should be concerned only when microphone and G100 are too close. So, if you are to talk on a phone thru G100, either place G100 nearby and higher the volume enough so the person on the other side of phone can hear or set your phone on speaker mode and place it next to G100. Both solutions are tested by us and we didn't experience and feedback noise issue.
Question:	Can it be used with lavalier mic? i am teaching remotely. live google meet with imac. i have paralyzed vocal cord and need to save my voice
Answer:	Yes it can be used with lavalier mic but you must use uni-directional condenser type in order to avoid feedback noise. It is recommended to use the microphone included in package which can be worn over ears or on neck. Also you can check out G120 model which includes ear-set mic.

Product features

Amplifying Sound not Noise - Let audience hear your delicate voice loudly & clearly without noise or distortion

POWERFUL & CLEAR SOUND

30W output power from neodymium magnet speaker and JUNSUNGTECH's original sound technology transmits user’s voice to reach farther in all directions without noise or distortion.

HIGH PERFORMANCE MICROPHONES

Various type of microphones allow user to choose best suitable type for different purposes.

EASY TO CARRY

Light(0.65lbs) and compact size(3.4x5.3x1.8in) amplifier with adjustable shoulder strap and detachable belt clip ensures high mobility.

FAST CHARGING & LONG RUNTIMNE

Robust 8.4V charging power supports 30W high output power and fast recharging time(about 3 hours). Fully charged GIGAPHONE runs for maximum 12 hours without recharging.

*Battery may last less or longer depending on utilizing condition such as volume level and external device connection.

**AC adapter/charger should be unplugged when battery is fully charged.

DURABLE & ROBUST DESIGN

Unique design to protect GIGAPHONE against external shocks, drops, dusts and light rain/splash.

PERFECT FOR

Trainer, Tour Guide, Coach, Referee, Patients, Youtuber, VJ, Teacher, Outdoor Activity, Sports Event, Public Speaking, Flea Market, Senior Home, Factory, Yoga Class, Gym, Karaoke Party, and Whoever & Wherever your voice needs to be heard clearly and loudly.

• 【Voice Amplifier】 Amplify your voice and save your throat at any time you need it. Provide 30w clear and soft sound, perfect for small and medium-sized groups with many people.
• 【Multiple Output Methods】 Not only is it an amplifier but also a portable Bluetooth speaker, you can transfer audio files from any type of Bluetooth-enabled mobile device, USB flash drive, TF card to 33 feet away.
• 【Rechargeable Voice Amplifier】 Built-in a large 3200mAh lithium-ion battery, so that the microphone speaker full charge only takes 3-5 hours, but play amplification time up to 10-12 hours, music playback time up to 8 hours.
• 【Small Size and Light Weight】This portable Bluetooth megaphone is a portable public address system that weighs only 249g and you can take it to multiple locations such as classrooms, bingo calls and outdoors. It's great for small to medium groups speaking to multiple people.
• 【Tips for use】1. Place the microphone directly in front of your mouth for maximum amplification.2. Don't howl: The microphone and speaker need to be positioned at a distance, preferably facing each other. It may also cause feedback if the volume is set too high. Just gradually increase the volume as needed.

User questions & answers

Question:	How do you record and play you're recording
Answer:	Yes, I use this voice amplifier to regularly to teach dance classes and it normally works well as long as I'm careful in the stretch segment to keep the microphone away from the speaker.
Question:	Is this voice amplifier suitable for teaching a dance class? Will it work with the speaker moving about
Answer:	Yes, you may speak and play a recording from tf/usb flash drive, we thought people may use it to sing a song with the music in the tf/usb flash drive. enjoy it!
Question:	Can you speak through the microphone and play a recording from tf (micro sd) or usb flash drive at the same time
Answer:	Actually no, I would like to recommend you to use a 3.5mm plug which is the correct size to connect to our device.Thanks for your attention.
Question:	Will this work with a lavalier that has a TRS plug
Answer:	I do not know the answer. I use the amplifier to call in the classes when they are done with recess. They can hear me even if I am on the other side of the playground from them. :)

Product features

Features

Output power: 30w

Frequency response: 90Hz-18KHz

Charging Voltage: DC 5v, 500ma

Material: ABS, Battery: 3200mA lithium-ion battery

Size: 4.60 x 3.38 x 1.53 in

Working time：Speaker：10-12 hours(mic mode), 8-10 hours(music mode)

Charging time: 3-5hours

Voice Amplifier Portable Battery capacity is 3200mAh, But it only takes around 3-5 hours to full charge the battery.

• PORTABLE VOICE AMPLIFIER: Amplify your sound and protect your throat. It’s Mono loudness up to 126dB. It can cover about 10000 sq. ft (1000 ㎡), loud enough to cover a big room. Suitable for teaches, trainer, singer, coacher, tour guide, shopping mall, presentation, meeting, outdoor speech, etc
• RECHARGEABLE VOICE AMPLIFIER: Built-in 1500 mAh rechargeable lithium battery, Working time is up to 10 hours, Only needs 3~5 hours to fully charge it. The LED indicator will remind you of charging in advance. Don't worry about no power supply suddenly
• LIGHTWEIGHT BUT POWERFUL: MAONO voice amplifier reduces your weight burden, It is only 4.1 x 3.3 x 1.4 inches and 9.17 ounces. You can also use a waistbelt to tie it around your waist or hang it on your neck, This is convenient for you to talk to your students or group members
• MULTIFUNCTIONAL AND EASY TO USE: Support TF card and AUX line-in to play music, it can even play music while you input the microphone, and it becomes a mini karaoke system. Besides, it is also a portable FM radio that you can listen to your favorite channel anywhere. Support one-key switch, one-key loop and repeat function
• PACKAGE AND WARRANTY: amplifier, wired headset microphone, Lithium battery, waistband, 3.5mm to 3.5mm Audio cable, USB charging cable, User manual. We also provide a 12-month warranty

Product features

Portable Design

Fashionable black

Fluid sculpture

Vacuum plating

Piano paint

Environmental protection materials

Radiation-free

Multiple Modes

Support AUX-IN/ TF Card/ USB Jack, Play music more easily! NOTE: This voice amplifier comes up with a 3.5mm jack, if your microphone receiver is a 6.35mm plug, you should need an adapter.

• Clear and Loud Sound: This Voice amplifier’s Mono loudness up to 126dB. It can cover a sound transmission range of approximately 10,000 sq. ft (1,000 ㎡). Stable performance, clear sound, very suitable for amplifying sound, and protecting your throat.
• Rechargeable Lithium Battery: Built-in 5 W 1500 mAh rechargeable lithium battery. Continuous working time is up to 10 hours. You can use a USB charging cable to charge this voice amplifier. It only needs 3 to 5 hours to fully charge.
• Support Music Playback: support TF card and AUX audio input to play music, you can switch with one key, repeat and cycle all music with one key. It also has an antenna and supports FM radio, so you can listen to your favorite channels in real-time.
• Small and Flexible: small and lightweight, it only has 4.1 x 3.3 x 1.4 inches and 9.17 ounces. The wired headset microphone and waistband are adjustable, which is very suitable for teaching, training, tour guides, outdoor lectures, and other places.
• Packing List and Warranty: 1* amplifier, 1* wired headset microphone, 1* lithium battery, 1*waistband, 1* 3.5mm to 3.5mm audio cable, 1* USB charging cable, 1* user manual. MAONO products provide a 12-month warranty to ensure a better shopping experience.

User questions & answers

Question:	How long can the amplifier be used in music mode
Answer:	Yes, it supports 240V, see pictures of the back of the speaker. The supported cable doesn't fit to most 240 V outlets. The socket/plug where you put the cable in does support cables that support 240V.
Question:	Can it be used by the elderly? Can the old man’s voice be amplified not too loudly or softly
Answer:	Yes, there is an included power cord. It’s approximately 5-6 ft long.
Question:	I'm a shopping guide in a supermarket, can I use voice amplifier for work
Answer:	These speakers are sold individually.
Question:	Can the voice amplifier only be worn on the waist
Answer:	Single monitor

• Easy to Operate: Voice Amplifier has a good amplification function. The cardioid microphone collects only the voice from your mouth without picking up any background sound. Wired microphone guarantees output more stably than wireless ones. Voice amplifier easy to operate, Suitable for tour guides, teachers, supermarket promotion. NOTE: Please tear off the yellow tape on the battery before use to avoid the battery cannot be charged
• Pocket Design But Powerful: Reduces your weight burden: It is only 3.1 x 1.8 x 3.4 inches and 127g (lighter than iPhone 6). It’s Mono loudness up to 126dB. The Sound covers over about 4000 sq.ft. Super lightweight but powerful make your presentations more successfully. Note this version is lower than C01 voice amplifier in volume. If you are not satisfied with C03 mini voice amplifier, we recommend C01
• Long Working Time: The inbuilt battery of 1020 mA provides about 10-hour working time, If use it 3 hours per day, you can use it about 1 week after 3 hours full recharge. Suitable for Classroom, Meetings and Outdoors. We also provide a 12-month warranty to ensure a good shopping experience
• USB to Micro USB Charging: Unlike another old-school voice amplifier which requires a unique charging adapter, MAONO VP is using the micro USB port, so you can just use your mobile charger and cable to charge it, no need to worry about losing your PA’s adapter
• MP3 and Music Player: Support SD card and AUX line-in to play music, easily turn this voice amplifier into a music speaker, it can even play music while you input the microphone, and it becomes a mini karaoke system

User questions & answers

Question:	Can you record with this
Answer:	Sorry, this product cannot be used for recording. It is a voice amplifier with good sound amplification function
Question:	Could I play auxillary input to the speak while talking through it
Answer:	You can. Turn the amp up until your voice is at the level you like. Then plug the aux in and turn that device down so it doesn't overpower your voice.
Question:	Warranty How do I return a unit that failed after 2 months
Answer:	Sorry I am not connected with the company so I do not have any knowledge about warranty.
Question:	Mine does not seem to charge, when it’s plugged in to charge, the red led does not show. it turns on, but only when it’s plugged in
Answer:	I had this problem as well, but read a review of the product that clarified it . There is tape in e lithium battery that needs to be removed before charging .

Product features

MAONO VOICE AMPLIFIER

Maono voice amplifier inherits the traditional public address function, it is a good partner for teachers, tour guides, supermarkets promotion, lectures, etc. After technical improvements, now maono amplifier has been able to amplify more than 400 square meter.

With the development of the times, the continuous development of new features can make the product to long-term development. Maono is trying best to meet more people's needs.

Good Performance

Christmas is coming, good gift

More details

Portable Design

• Fashionable black
• Fluid sculpture
• Vacuum plating
• Piano paint
• Environmental protection materials
• Radiation-free

• Amplifys your voice and saves your throat. The sound is clear, crisp, no noise and no distortion. The max 10 watts sound can cover about 10000 sq. ft (1000 ㎡), loud enough to cover a big room.
• Compact size (4. 1 x 1. 4 x 3. 4 inches) and light weight (0. 36 lb.). You can use the back clip to fix it on your belt or pocket. You can also use waistbelt to tie it around your waist or hang it on your neck.
• Built in 1800 mAh rechargeable lithium battery. Continuously working time is up to 12 hours. You can use USB cable to charge this mini voice amplifier. Only needs 3~5 hours to fully charge it.
• Supports MP3 audio playing: TF (Micro SD) card playing & USB flash drive playing. Can repeat single tune, loop all music and switch songs. Supporting 3. 5mm AUX audio input (Mic port can be used as AUX port), can work as a wired speaker.
• The wired headworn microphone is adjustable. You can adjust the distance between your mouth and the mic. Made of durable and wear-resistant ABS material, this voice amplifier looks fashion. Suitable for teaching, trainer, singer, coacher, tour guide, shopping mall, presentation, outdoor speech and etc. .

User questions & answers

Question:	Does it work with 220v input charge? Does it charge in usb too? Can I use the mic and the usb music at the same time
Answer:	The package includes one charger. The voltage range of the charger is 100-240V. So this voice amplifier works with 220v input charge via this charger.It charges in USB too, but the USB is mini USB. Package includes one mini USB Cable.You can use the mic and the usb misic at the same time.
Question:	Is headpiece adjustable
Answer:	The microphone tube is adjustable. You can adjust the distance between mic and your mouth.
Question:	Can you replace the battery, or is it hardwired internally
Answer:	By the previous evasive answer I will have to assume that this is the week link in this equipment, a special battery that if bad, you might as well trash the equipment.
Question:	Will this transmitter work with a throat (neck) mic instead of the mics that come with it
Answer:	I purchased this product and it DID NOT work with my throat mic that I use all the time when making recordings. I’m very disappointed and considering returning the product. The head set is difficult for someone with glasses to wear.

Product description

The wired microphone can be connected to the music instruments for amplification (With the use of voice amplifiers and AUX audio devices ) that is popular for music lovers.



Specifications

Output Power:RWS 30W max

Frequency Response:100Hz-13KHz

Battery Type:Rechargeable Lithium Battery(2600mAh)

Working Temperature-10℃-60℃

Size: 4.5x3.5x1.7inch

Unit Weight: 11.03oz

Musical use time: 8--10 hours

Amplification of using time: 12-15 hours

Charging time: 4-6hours



Package Contents

1*AC-DC Charger

1*Adjustable Strap

1*Quick Start Guide

1*Wired Microphone Headset

1*Voice Amplifier



Note:

1.The microphone can not be close to other microphones or speakers as this will produce coupling and generate a reverberation that never ends when a microphone is near a loudspeaker will catch the sound of it and emit a shrill voice and create a loop up Cut off the current or move away from each other.

2.Record Mode is only available when TF card/USB Flash is on the device.

3.When device is on,insert the TF card first and then USB Flash ,it will go into USB Mode,insert the USB Flash first and TF card later,it will go into TF mode.

4.When Device is off,no matter which device is insert first(TF card and USB Flash),the default setting will become USB Mode after the device is on.

5.On record Mode,the recordings will be saved on TF card only if TF card and USB Flash are both on the device.

6.The recordings will be saved on TF card/USB Flash if TF card/USB Flash is on the device.

7.During the record mode,short press the play/pause button to start recording and short press that button again to pause,long press the button to delete the recording.

• 【Voice Amplifier】 Amplifies your voice and saves your throat when you have a difficult time speaking loudly enough. Delivering 30w clear and soft sound to cover about 10000 sq.ft (1000 ㎡). A great solution to make yourself heard without a wire
• 【bluetooth voice amplifier】Not only an amplifiers but also a portable Bluetooth speaker, you can stream your favorite music from any type of Bluetooth-enabled mobile device, up to 33 feet away.
• 【Rechargeable Voice Amplifier】Wireless Voice Amplifier built-in a 2800mAh big lithium battery allows the microphone speaker to only take 3-5 hours to fully charge, but plays up to 15-18 hours of amplify time and up to 13 hours of music playtime. Microphone will take 2-4 hours to fully charge.ys up to 15-18 hours of amplify time and up to 13 hours of music playtime. Microphone will take 2-4 hours to fully charge.
• 【Light weight power box】 Voice Amplifier this microphone and speaker set is a portable public address system. You can take it to multiple locations such as classrooms, bingo calling and outdoors.
• 【Supports Music Playing】 Voice Amplifier TF (Micro SD) card playing & USB flash drive playing. You can repeat single tune, loop all music and switch songs.Provide friendly customer service and 1 year warranty.

User questions & answers

Question:	Can you Bluetooth to a speaker to amply the sound louder
Answer:	Its pretty much assembled all you have to do is screw the ring light to the tripod and plug it in. Also it has different settings for color and brightness. For the price its held up to my abuse and it also comes with a nice storage bag for the light
Question:	Will this work for an Instructor in an indoor riding arena that does not have internet connection
Answer:	Yes the phone holder can rotate from landscape to potrait easily.
Question:	In a smaller room will this give us feed back
Answer:	Yes it is very strong it grips very well
Question:	why my voice is echoing when it comes out of the amplifier? I tried to adjuct the microphone and it didn't work. the classroom for 100 students
Answer:	Yes, you can use 3.5mm audio cable to connect this receiver with ION.

• 【Wireless Voice Amplifier】 Amplifies your voice and saves your throat when you have a difficult time speaking loudly enough. Delivering 10w clear and soft sound to cover about 10000 sq.ft (1000 ㎡).
• 【Amplifier with Two Microphones】UHF wireless microphone and wired microphone.UHF technology wireless microphone amplifier more resistant to interference, longer transmission distance and better listening experience.The wireless ear hook is removable.
• 【Light weight power box】this microphone and speaker set is a portable public address system. You can take it to multiple locations such as classrooms, bingo calling and outdoors. A big help in speaking to 50+ members in your group.
• 【Rechargeable Speaker】Wireless portable voice amplifier built-in a 1800mah lithium battery and can be used continuously for about 8-15 hours.The wireless microphone can be used for about 3-5 hours.
• 【Supports Music Playing】 TF (Micro SD) card playing & USB flash drive playing. You can repeat single tune, loop all music and switch songs. Supporting 3.5mm AUX audio input (Mic port can be used as AUX port), Easy to use as a wired speaker.

User questions & answers

Question:	Can the headset work with either left or right ear (in other words I want it work on both
Answer:	I don't think so.... BUT I have been successful wearing the headset around my neck... thus, either side. I have glasses and sometimes find both the headset and glasses a bit much. I LOVE the head set. As an elementary music teacher, with 36 years under my belt, my voice is beginning to "wear out" more easily... this is a great set up.
Question:	On the headset - does the box part cover the ear? I wear hearing aids, so that would be a problem
Answer:	No problem, I think yes, it won't hinder you. And this headset is head-mounted and hand-held. the wireless ear hook is removable.Thanks.
Question:	Can the amplifier box hang in the back of the classroom while the speaker/headset are in the front of the room? How far will the pairing work
Answer:	I don't know the exact distance for pairing but I doubt it. The amplifier is intended to be used while on the body of the person wearing the headset. The amplifier is not large...it fits in my pocket. It also comes the a belt clip and a lanyard.
Question:	Does it work with 220v input charge? Does it charge in usb too? Can I use the mic and the usb music at the same time
Answer:	hello,The package includes one charger. The voltage range of the charger is 100-240V. So this voice amplifier works with 220v input charge via this charger. It charges in USB too, but the USB is mini USB. Package includes one mini USB Cable. You can use the mic and the usb misic at the same time.

• ❀【Powerful Sound 】The voice amplifier is in compact size, but with 10W output crystal sound and no noise is loud enough to cover a room with a large group of 25-100 people. The stable performance perfect for amplifying your sound and saving your throat.
• ❀【Long Battery life and Multifunctional】 - The voice amplifier with a 1800mAh built-in big rechargeable lithium battery provides 8 to 12 hours amplify time and 6 to 10 hours music time with a full charge.And the voice amplifier takes only 3-5 hours fully charged.And you can use it not only as a voice amplifier but a music player from a TF card or USB flash disk.
• ❀【Adjustable Microphone Headset】 -The microphone headset is lightweight and adjustable.You can adjust the distance between the microphone and mouth with its flexible gooseneck.Comfortable design makes it convenient for your teaching, training, presention and other activies.
• ❀【Campact and Easy Carry Around】 - The portable microphone and speaker is in compact size and super lightweight, you can use the back detachable clip to fix it on your belt or pocket, or you can also tie it around your waist or hang it on your neck with the help of the waistband.
• ❀【Warm Tips and Guarantee】 -Please keep the speaker and mic for a distance and facing away each other to avoid the signal affected.Worry -Free Warranty.We provide return and refund without reason in 30 days, and 12- month warranty, and lifetime technical upport.

User questions & answers

Question:	Bought this one 2 yrs ago/liked it. stopped working. comes on & if i turn it off can't get back on. suggestions? afraid to buy again
Answer:	Sure. This small SHIDU voice amplifier is a good choice for a tour guide like you.
Question:	I'm a tour guide, will this speaker work on a 20-seaters car/sprinter
Answer:	This wired microphone headset which comes with this voice amplifier is light and not a problem.
Question:	How comfortable is the headset
Answer:	Yes, I use this voice amplifier to regularly to teach dance classes and it normally works well as long as I'm careful in the stretch segment to keep the microphone away from the speaker.
Question:	Is this voice amplifier suitable for teaching a dance class? Will it work with the speaker moving about
Answer:	Yes, it is possible to replace that cable, get it from the mfg. or any common electronics store like Fry's, Radio Shack, or online, it just plugs/unplugs from the speakers.

Product features

SHIDU voice Amplifier Compact Size with Loud Sound. Amplfying Your Voice and Save your Throat

Long Working Hours Voice Ampplifier

• Power output: 10W
• Battery capacity: 1800mAh
• Charging voltage: DC5V, 500mA
• Working time: 8-12 hours (MIC mode); 6-10 hours (musical mode). (It’s up to the volume you control)
• Charging time: 3-5 hours
• Sounds coverage: 5000sq.ft

Package Content

• 1 x Voice amplifier
• 1 x Wired microphone headset
• 1 x Waistband
• 1 x USB cable
• 1 x User manual
• Not Charger included (You can plug the included USB cable into your computer, wall charger or any 5V power bank to charge the voice speaker)

Multifuctional Use

It is not only a personal voice amplifier, but also a music player. You can enjoy music from a TF card and USB flash disk. It can even play music while you input the microphone, then this portable microphone and speaker becomes a mini karaoke system.

Adjustable Mic and Headset

The portable microphone and headset is adjustable and you can adjust the distance between the mouth and the mic,make yourself in a comfortable staues.

Comfortable Microphone and Headset with Clips

The portable voice amplifier is compact and lighweight with clip for you to attach to the belt and waistband for the hands free use. The use of a voice amplifier improves the learning and the teaching experience, communication and increases effectiveness of classes, lectures, meetings, sales presentations.