14 best speech amplifier for 2021

It took days of going through more than a thousand customer reviews and conducting expert researches to narrow down the list. Weve included a comparison table below to give you a quick summary of our top 14 speech amplifier. Its followed by an in-depth review of each speech amplifier. Hopefully, once you are done reading this article, you will be well informed about speech amplifier and be able to select the right speech amplifier for you without any hesitations.

Product Features Go to site
Zoweetek Portable Rechargeable Mini Voice Amplifier with Wired Microphone Headset and Waistband, Supports MP3 Format Audio for Teachers, Singing, Coaches, Training, Presentation, Tour Guide Zoweetek Portable Rechargeable Mini Voice Amplifier with Wired Microphone Headset and Waistband, Supports MP3 Format Audio for Teachers, Singing, Coaches, Training, Presentation, Tour Guide Go to amazon.com
WinBridge WB001 Rechargeable Ultralight Portable Voice Amplifier Waist Support MP3 Format Audio for Tour Guides, Teachers, Coaches, Presentations, Costumes, Etc.-Black WinBridge WB001 Rechargeable Ultralight Portable Voice Amplifier Waist Support MP3 Format Audio for Tour Guides, Teachers, Coaches, Presentations, Costumes, Etc.-Black Go to amazon.com
GIGAPHONE Outdoor SV Portable Voice Amplifier [40W] with Microphone GIGAPHONE Outdoor SV Portable Voice Amplifier [40W] with Microphone Go to amazon.com
ZOWEETEK Voice Amplifier with UHF Wireless Microphone Headset, 10W 1800mAh Portable Rechargeable PA system Speaker for Multiple Locations such as Classroom, Meetings, Promotions and Outdoors ZOWEETEK Voice Amplifier with UHF Wireless Microphone Headset, 10W 1800mAh Portable Rechargeable PA system Speaker for Multiple Locations such as Classroom, Meetings, Promotions and Outdoors Go to amazon.com
Portable Bluetooth Waterproof Voice Amplifier Wireless Headset Microphone Small Personal Voice Amplifier 18W 4400mAh Rechargeable Wearable Mic System for Teachers or Outdoors Portable Bluetooth Waterproof Voice Amplifier Wireless Headset Microphone Small Personal Voice Amplifier 18W 4400mAh Rechargeable Wearable Mic System for Teachers or Outdoors Go to amazon.com
Giecy Voice Amplifier Portable Bluetooth 30W 2800mAh Rechargeable PA System Speaker for Multiple Locations Such as Classroom, Meetings and Outdoors Giecy Voice Amplifier Portable Bluetooth 30W 2800mAh Rechargeable PA System Speaker for Multiple Locations Such as Classroom, Meetings and Outdoors Go to amazon.com
WinBridge Wireless Voice Amplifier WB711 Microphone with Speaker Personal PA System Throat Saving 10W Rechargeable Portable for Tour Guide Teachers Coaches Classroom Elderly Etc WinBridge Wireless Voice Amplifier WB711 Microphone with Speaker Personal PA System Throat Saving 10W Rechargeable Portable for Tour Guide Teachers Coaches Classroom Elderly Etc Go to amazon.com
New Voice Amplifier Personal Portable Microphone Headset 18W Hear Loud All in One Bluetooth Speaker, Waterproof, Recording, AUX Jack for Teachers, Outdoor Speech Tour Guide New Voice Amplifier Personal Portable Microphone Headset 18W Hear Loud All in One Bluetooth Speaker, Waterproof, Recording, AUX Jack for Teachers, Outdoor Speech Tour Guide Go to amazon.com
Wireless Voice Amplifier with Headset Mic 18W Voice Loudspeaker Portable Bluetooth Speaker Waterproof IPX5 Power Bank for Outdoor Activities, Shower, Teachers, Presenter, Salesman etc Wireless Voice Amplifier with Headset Mic 18W Voice Loudspeaker Portable Bluetooth Speaker Waterproof IPX5 Power Bank for Outdoor Activities, Shower, Teachers, Presenter, Salesman etc Go to amazon.com
Voice Amplifier Portable with Wired Headset Microphone Speaker Hear Lound with Mask On 18W 4400mAh Support Bluetooth Speaking Recording Waterproof for Outdoors Teachers Tour Guide Whisper M800 Voice Amplifier Portable with Wired Headset Microphone Speaker Hear Lound with Mask On 18W 4400mAh Support Bluetooth Speaking Recording Waterproof for Outdoors Teachers Tour Guide Whisper M800 Go to amazon.com
W WINBRIDGE Voice Amplifier Portable Microphone and Speaker Loudspeaker Personal Microphone Speech Amplifier Clip On for Teacher, Elderly,Coaches, Training, Presentation, Tour Guide W WINBRIDGE Voice Amplifier Portable Microphone and Speaker Loudspeaker Personal Microphone Speech Amplifier Clip On for Teacher, Elderly,Coaches, Training, Presentation, Tour Guide Go to amazon.com
ZOWEETEK Wireless Voice Amplifier buletooth with 2 Microphone, 25W, 4000mAh Rechargeable Portable PA system Speaker for Teachers, Tour guides, Coaches, Meetings, Yoga,Fitness and Outdoors ZOWEETEK Wireless Voice Amplifier buletooth with 2 Microphone, 25W, 4000mAh Rechargeable Portable PA system Speaker for Teachers, Tour guides, Coaches, Meetings, Yoga,Fitness and Outdoors Go to amazon.com
AIMIY Voice Amplifier for Teachers 10W Ultralight 2200mAh Supports TF/USB Portable Microphone and Speaker Loudspeaker Personal Microphone Speech Amplifier for Elderly,Coaches, Training, Presentatio AIMIY Voice Amplifier for Teachers 10W Ultralight 2200mAh Supports TF/USB Portable Microphone and Speaker Loudspeaker Personal Microphone Speech Amplifier for Elderly,Coaches, Training, Presentatio Go to amazon.com
UHF Wireless Microphone System Neckband 100FT Rechargeable 1/8''1/4'' Plug Mic for Camera/Laptop/Phone/Speaker Cardioid Condenser Mic for Recording/Amplifing/Teacher/Tour Guide/Fitness Instructor UHF Wireless Microphone System Neckband 100FT Rechargeable 1/8''1/4'' Plug Mic for Camera/Laptop/Phone/Speaker Cardioid Condenser Mic for Recording/Amplifing/Teacher/Tour Guide/Fitness Instructor Go to amazon.com
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Reviews

1. Zoweetek Portable Rechargeable Mini Voice Amplifier with Wired Microphone Headset and Waistband, Supports MP3 Format Audio for Teachers, Singing, Coaches, Training, Presentation, Tour Guide

Feature

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. Continously 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..

Description

Feature:
-Stylish, ergonomic, lightweight, sleek and comfortable design
-Ultra-Portable Design of LoudSpeaker - Can be worn around waist with the help of a waistband
-Equipped with special acoustic microphone -- HiFi original sound amplification
-Loud enough with 10w output - Can be used for group of 25-100 people
-Can work as Speaker for Mobiles, Computers, iPads/ Tablets (Microphone port can be used as 3.5mm aux audio port)
-Supports USB Flash Drive & TF card
-Nd-fe-b magnet trumpet which is king of clear sound ensures strong penetrating power sound and wide coverage

Specifications:
Max output power: 10W
Output Impedance: 4
Charging voltage: DC 5V 500mA
Music-play time: 6-10 hours
Frequency response: 90Hz-18KHz
Work temperature: -10-45
Amplify time: 8-12 hours
Charging time: 3-5 hours

2. WinBridge WB001 Rechargeable Ultralight Portable Voice Amplifier Waist Support MP3 Format Audio for Tour Guides, Teachers, Coaches, Presentations, Costumes, Etc.-Black

Feature

Light Portable Voice Amplifier A small and compact personal voice amplifier that will project voice across the room. In addition to its ability to project voice from an adjustable microphone that is included in this product,
Adjustable Headset Microphone The microphone headset with speaker can be positioned near your mouth with its flexible gooseneck design. The headset sits on top of the head so it is stable and won't fall off
Amplifier for VoiceThis WB001 microphones and speakers is a really great aid for doing presentations or running meetings, smallish groups where leader must be heard, particularly if one is having trouble with one's own vocal volume.
Multifunctional DesignPortable speaker amp can also play music from TF card AND flash drive. Comes with a belt strap which can attaches with clips to the amplifier and then can be worn around the neck or through belt loops.
Portable Pa Amplifier Built-in rechargeable lithium battery offers you up to 5-8 hours of powerful amplification. WinBridge provides one year warranty and Lifetime technical support!

Description

Wired Voice Amplifiers:
WB001: (The Lightest Portable with Waist Clip,Black) Hotest!
WB002: (FM, Recording, Aux, TF Card with Waist Clip, Black, Blue)
WB003: (18W High-Power PA System without Waist Clip,Black, Blue)
S368: (4 in 1 Rechargeable with Waist Clip, Black, Red)
S378: (FM, TF Card Mini with Waist Clip,Black)

Wireless Voice Amplifiers:
S328: (FM Wireless Technology 5W,Black)
S378W: (FM Wireless Technology 5W,Black, Blue, Purple)
S611: (UFH Wireless Technology 10W,Black)
S610: (2.4G Wireless Technology 10W, Blue, Purple)
S613:(2.4G Wireless Technology 18W, Black,Red)
S711(UFH Wireless Technology 5W,Black)
S92: (UFH PA System 25W with Handled Microphone)
S90: (UFH PA System 60W with Two Handled Microphone---The biggest Power)
WinBridge Clip-on Microphone which are compatible with all WinBridge Voice Amplifier (highly recommend)

WB001 Function & Parameters:
Wireless:No
USB/TF Card: Yes
FM Radio: No
Repeat: Yes
Recording: No
Loop play back: Yes
Fast forward & Fast backward:No
AUX:No
Reverberation:No
Including Wall Charger:No

Power output: 5W
Frequence response: 90Hz-18KHz
Charging Voltage: DC 5V, 500mA
Lithium battery: 1050mA
Product size: 110*88*38mm
Unit weight: 138g/0.3lb
Musical use time: 6-8 hours
Amplification use time: 12-15 hours
Charging time: 3-5 hours

Package:
White box package
1*Main machine
1*Waistband (3.9ft)
1*Wired microphone
1*USB cable
1*Specification
Please be noted this item doesn't come with a charger!

Warranty: At WinBridge We believe in our products. That's why we back them all with 1 years warranty and provide friendly, easy-to-reach support.

3. GIGAPHONE Outdoor SV Portable Voice Amplifier [40W] with Microphone

Feature

HIGH-POWERED AMP : 40W output power & Neodymium magnet Speaker transmit your voice louder, clearer and farther without noise or distortion
COMPACT & LIGHT : Only 3.50 x 4.52 x 1.69 in & 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 RECHARGE TIME : Runs for 12 hours per 3 hours charging. Battery level showing on LCD.
3.5mm AUX PORT : Connect with laptop, MP3 player, iPhone, iPad, iPod, Smartphone and other devices

4. ZOWEETEK Voice Amplifier with UHF Wireless Microphone Headset, 10W 1800mAh Portable Rechargeable PA system Speaker for Multiple Locations such as Classroom, Meetings, Promotions and Outdoors

Feature

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 MicrophonesUHF 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 boxthis 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 SpeakerWireless 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.

5. Portable Bluetooth Waterproof Voice Amplifier Wireless Headset Microphone Small Personal Voice Amplifier 18W 4400mAh Rechargeable Wearable Mic System for Teachers or Outdoors

Feature

POWERFUL Microphone and Speaker: The portable voice amplifier comes with a WIRELESS headset microphone. UHF wireless transmission technology, 20m/65ft stable wireless connection at open area. The uhf wireless headset gives you complete freedom to walk around the room. Super 18W output, Sound covers 10000 sq.ft (1000 ), Allows you to project your voice across a group of 20 to 65 people clearly and loudly. Ideal for MEDIUM-SIZED or SMALL room use.
RECHARGEABLE Headset Speaker: The wireless voice amplifier which built-in lithium-ion battery (4400mAh ) lasts a long time (8-12 hours); but wireless microphone lasts only 2-4 hours. The wireless headset has a short battery life. if you need to use the item for a long time, we suggest you choose the wired version. Or you can buy an extra wired microphone or a 3.5mm lapel mic to go with it.
ALL-IN-ONE Voice Amplifier, Bluetooth Pa Speaker, Mobile Power: 1. You can easy stream the music from your Bluetooth-enabled devices like Phone, Tablet via Bluetooth and Non-Bluetooth device via Aux input. 2. The Bluetooth voice amplifier supports microphone input and music play simultaneously. 3. Also supports TF Card, U Disk and Recording function. 4.What is more, you can use this personal amplifier as a mobile power source to charge your phone.
PORTABLE & DURABLE: Compact size 4.57"(Height) *3.66" (Width) * 1.65" (Thickness) and light weight (0.86 lb). IPX5 waterproof voice amplifier with TPU unbreakable silicone + durable ABS material, ensuring amplifier shockproof and waterproof. Even if you accidentally drop it to the ground, don't worry that it will break. ( NOTED: The headset microphone is NOT waterproof )
WARM TIPS: 1.The voice amplifier CAN NOT be soaked in water the microphone is not waterproof ! 2. When you use the voice amplifier please charge it first and keep the speaker and microphone for a distance to avoid the noise. 3. Only the amplifier speaker comes with built-in Bluetooth capability. The wireless headset is not a Bluetooth mic.

6. Giecy Voice Amplifier Portable Bluetooth 30W 2800mAh Rechargeable PA System Speaker for Multiple Locations Such as Classroom, Meetings and Outdoors

Feature

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 20000 sq.ft (1000 ). loud enough to cover a big room.
bluetooth voice amplifierNot 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.
Light weight power boxthis portable Bluetooth Amplifiers 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 100+ members in your group.
Rechargeable 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 12-15 hours of amplify time and up to 8 hours of music playtime.
Supports Music Playingpersonal voice amplifier TF (Micro SD) card playing & USB flash drive playing. You can repeat single tune, loop all music and switch songs,Easy to use as a wired speaker.

7. WinBridge Wireless Voice Amplifier WB711 Microphone with Speaker Personal PA System Throat Saving 10W Rechargeable Portable for Tour Guide Teachers Coaches Classroom Elderly Etc

Feature

This louder-speaker is very Lightweight (13.44oz), clear, fantastic audio boost.The mike bends very nicely to where you want and it provides a great voice boost and great range (it up to 33ft so far). If you like one more microphone headset for backup, then WB008 wireless mic is a good choice for you;
The wireless voice amplifier's clip AND the strap option to secure the speaker make it fantastic for putting it where you want it. Clip on pocket or wait band, wear over shoulder or as belt if using clip on strap.
Voice amp built-in high capacity lithium battery allows the microphone and speaker to only take 3-5 hours to fully charge, but speaker plays up to 8 hours of amplify time and up to 8 hours of music playtime. Mic up 3 hours playtime.
Voicebooster is a favorite among teachers, tour guides, parkinson's patients who has soft voice or outdoor enthusiasts who need to stay in contact with small groups.Its clear sound let you reach any audience with ease and save your vocal cords and throat.
A small in size speaker,you don't have to wear the speaker on body as it comes with a wireless mic which support you move around. Warmly tips: 1. This is a small personal voice amplifier which be suitable for arround 25 people in small space about 60 square meters but not for large room or ourdoors ; 2. Speaker can't turn on while charging;

8. New Voice Amplifier Personal Portable Microphone Headset 18W Hear Loud All in One Bluetooth Speaker, Waterproof, Recording, AUX Jack for Teachers, Outdoor Speech Tour Guide

Feature

3 in 1 Multifunctional voice amplifier + bluetooth speakers + power bank for your convenience. It's not only a amplifier can enhance voice but also can be a portable Bluetooth wireless speaker, even as a power bank for emergency charging. Please be noted item comes with a WIRED microphone but not Bluetooth Mic.
Portable voice speech amplifier support Recording, Loop playback, Aux input, TF card, U disk. What astonishing is the ability to support microphone input and music play simultaneously! The personal amp allow you to be heard and maintain social distancing.
The only one voice amplifier with speaker microphone in the world has the waterproof function. The silicone cases and interface design ensure Shockproof, Dustproof ,level up to IPX5! Firm, Solid and Sturdy!
This portable microphone headset and speaker has a clip you can hook on to a belt and comes with a neck strap which can also be used as a belt attachment.
If you are a teacher, tour guide, presenter, salesman, coach, instructor, or people who has a soft voice, parkinson's disease , vocal cord is paralyzed or whisper, then this is a good aid speaker or megaphone or mini amp for you.

9. Wireless Voice Amplifier with Headset Mic 18W Voice Loudspeaker Portable Bluetooth Speaker Waterproof IPX5 Power Bank for Outdoor Activities, Shower, Teachers, Presenter, Salesman etc

Feature

Stable Performance: Portable speaker with microphone has 18W output, sound covers up to 10000 sq.ft, makes your voice spread clear and louder among 50 to 180 people. Personal voice amplifier with wireless microphone system, let you get rid of wires trouble. Perfect for teachers, trainer, tour guide, salesman, Yoga, etc
Long Battery Life: With built-in 4400mAh rechargeable lithium battery, the working time of the speaker is about 10-12 hours with half volume, but uhf headset Mic only about 2-4 hours. If using 3+ hours, please use with plug-in mic/ purchase wired version (ASIN: B07F8SKW17)
Multiple Options: The mini voice enhancer supports one-key recording, Bluetooth 4.2, AUX, TF/ Micro SD card, U disk, even as power bank for emergency charging. You can play music wirelessly or just plug in an aux cord, which is great for non-Bluetooth devices
Detachable microphone system: 2 in 1 wireless microphone headset adopts UHF wireless transmission technology - more fast and stable. With removable ear hook, can be serve as head-worn/ hand-held Mic (Note: It's neither waterproof nor Bluetooth Mic)
Waterproof and Durable Design: TPU+ABS material sporty design to ensure the speaker splashproof (but cannot be fully submerged) and support to amplify voice and play music simultaneously. We also support worry-free and professional after-sales technical

10. Voice Amplifier Portable with Wired Headset Microphone Speaker Hear Lound with Mask On 18W 4400mAh Support Bluetooth Speaking Recording Waterproof for Outdoors Teachers Tour Guide Whisper M800

Feature

Headset MicrophoneThis portable voice amplifier help you don't have to strain voice during training during this Covid-19, helps with social distancing and understanding what is said while wearing a mask. It builts in 4400mAh ( 2*2200mAh ) which is specially designed for outdoors. The Loudspeaker volume is decent and could be intelligible from at least about 80 feet away.
Wireless Speaker voice amplifier not only can be a mini pa system to enhance voice with wired mic included , but also can be a wireless Bluetooth speaker to stream your favorite music from any type of Bluetooth such as your iPad, iPod touch, iPhone etc. The extra feature powerbank is a suprise/good choice for outdoors activies.
Mutil Personal Voice AmplifierThis voice amplifier microphone supports recording while playing, what you need to do is insert a TF card or USB driver.It also comes with a audio cable to connect your phone to play music.What astonishing is the ability to support microphone input and music play simultaneously!
Rugged Voice SpeakerPortable public address built in IPX5 waterproof function. The silicone cases and interface design ensure Shockproof, Dustproof ,level up to IPX5! Firm, Solid and Sturdy! This is a real outdoor voice amplifier speaker. Perfect for tour guide,PE teacher,Coaches even whisper.
Package IncludedPortable voice amplifier includes voice saver unit,wired mic,charging cable, 5V plug, audio cable, waistband and manual.WinBridge always stand behind our customers!

11. W WINBRIDGE Voice Amplifier Portable Microphone and Speaker Loudspeaker Personal Microphone Speech Amplifier Clip On for Teacher, Elderly,Coaches, Training, Presentation, Tour Guide

Feature

Portable Voice amplifier is a life saver on your voice and throat!Speaker gives off a clear and crisp sound,no noise and no distortion!You could easily make a presentation to a group of 50 people and be heard clearly.
Microphone and speaker compact size (7.087 x 5.669 x 2.205 inches) and light weight (11.36 ounces). Voice Amplification System comes with an adjustable band you can use around your waist but also has a clip on the back of the unit you can clip on a belt or pant waistband.
Portable Loudspeaker built in rechargeable lithium battery. Continously working time is up to 6 to 8 hours. You can use USB cable included to charge this mini voice amplifier. Only needs 3~5 hours to fully charge it.
Microphone amplifier supports MP3 audio playing and TF (Micro SD) card playing & USB flash driver playing. Can repeat single tune, loop all music and switch songs.
Portable Speaker provides a sound system for meeting,teaching, training,outdoor activities like wedding,Yoga classroom even for tourist guide,elder and whisper etc

12. ZOWEETEK Wireless Voice Amplifier buletooth with 2 Microphone, 25W, 4000mAh Rechargeable Portable PA system Speaker for Teachers, Tour guides, Coaches, Meetings, Yoga,Fitness and Outdoors

Feature

Voice Amplifier Wireless Output power 25W with 4-inch Subwoofer and 1.5-inch Tweeter deliver loud and clear sound .Sound to cover about 20000 sq.ft (2000 ). No noise and no distortion.Buletooth 5.0,True Wireless Stereo allows you to sync any two H6 pa speakers together,In TWS mode, two speakers can even provide a total of 50 watts of extraordinary sound.
Amplifier with Two MicrophonesUHF wireless microphone and wired microphone.UHF technology wireless microphone amplifier more resistant to interference, longer transmission distance and better listening experience.Headset and handheld 2 in 1,the wireless ear hook is removable.If you are unable to pair the wireless microphone with the speaker, please contact us for a pairing method video.
Rechargeable Speaker built-in a 4000mAh big lithium battery allows the microphone speaker to only take 4-6 hours to fully charge, but plays up to 10-12 hours of amplify time and up to 4-6 hours of music playtime( Depending on the volume. The wireless microphone can be used for approximately 3-5 hours.
Multi-function loudspeaker TF (Micro SD) card playing & USB flash drive playing. You can loop all music and switch songs. Supports FM radio and Recording functions; Support 3.5mm AUX audio input (Mic port can be used as AUX port), Easy to use as a wired speaker.
Powerful Voice Amplifier for teachersPortable microphone amplifier using the ABS material that is characterized by being rugged and robust, Hi-Fi technology reverses the sound as real and is transported from the throat. Very useful for teachers, coaches, speakers.Amplify your voice and save your throat when you have trouble speaking or not enough volume.A big help in speaking to 100+ members in your group.

13. AIMIY Voice Amplifier for Teachers 10W Ultralight 2200mAh Supports TF/USB Portable Microphone and Speaker Loudspeaker Personal Microphone Speech Amplifier for Elderly,Coaches, Training, Presentatio

Feature

PORTABLE MICROPHONE AND SPEAKER:Compact size ( 3.3x3.3 x1.8 inches). This classroom microphone is super light (only 0.26 lb), 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, very convenient.
WORKS GREAT AND LOUD:The voice amplifier with 10W large speakers can cover approximately 500 square meters classroom. is a life saver on your voice and throat.You could easily make a presentation to a group of 50-80 people and be heard clearly
ENOUGH BATTERY :Voice amp built-in a 2200mAh big lithium battery allows the microphone and speaker to only take 3 hours to fully charge, but speaker plays up to 8 hours of amplify time and up to 8 hours of music playtime. Mic up 3 to 4 hours playtime.
MULTIFUNCTIONAL VOICE AMPLIFIER: supports MP3 audio playing and TF (Micro SD) card playing & USB flash driver playing. Can repeat single tune,and switch songs.
USE:You can have the amplifier attached to a belt behind your back ( to prevent high pitched whistle if too close to mouth piece) waist, or you can hang around the neck with waistband included.Warmly tips: Please hold the lavalier mic directly in front of your mouth to pick up decent sound,

14. UHF Wireless Microphone System Neckband 100FT Rechargeable 1/8''1/4'' Plug Mic for Camera/Laptop/Phone/Speaker Cardioid Condenser Mic for Recording/Amplifing/Teacher/Tour Guide/Fitness Instructor

Feature

MAROMALIFE GUARANTEE - Maromalife is a professional brand seller in the USA, since 2011 we have been serving over 5,000,000 customers. We pay attention to each customer's shopping experience and provide 1 year warranty. If you have any problem, please feel free to contact us. KX620 wireless mic system is carefully developed by us, simple and fool-proof to operate. Ergonomic neckband design, use high quality silicone materials, you even wont feel uncomfortable after wearing it for a long time.
WIDE COMPATIBILITY - This neckband wireless microphone system is originally equipped with 1/8 TRS plug, compatible with CAMERA& LAPTOP& DESKTOPwell. In the package, we provide a Headphone Microphone Splitter and a 3.5 to 6.35 Converter. With the help of them, you could use the KX620 wireless mic on PHONE& IPAD& TABLET& PA SPEAKER& MIXER. Please notice that this wireless mic system is NOT SUPPORTED AMP, BLUETOOTH SPEAKER, MACBOOK.
AWESOME AUDIO PERFORMANCE - KX620 neckband UHF wireless mic system built-in high sensitivity condenser cardioid microphone (Only for MIC Jack, not AUX Jack), more sensitive and accurate to pick up sounds, filter out noise and improve sound quality. The MAX outdoor transmission distance is about 131 ft (40 m) while the max indoor transmission distance is about 98 ft(30m). Stable signalLow delayLow distortionAnti-howlingAnti-jammingConstant frequencyClearer sound quality.
12 FREQUENCIES & ANTI INTERFERENCE - This wireless transmitter & receiver system has 12 working frequencies. When frequency interference occurs during use, please short press the transmitter power button to change frequency. 12 frequencies means you can use 12 sets of KX620 wireless mic system simultaneously. One KX620 transmitter can be paired with multiple KX620 receivers simultaneously. That means, you could have multiple audio output at the same time.
MULTIPLE USE - This wireless mic system can be used for recording or amplification, ideal for live performances like church preaching, weddings, teaching, online class, presentations, school plays, trainings, vlogging, public speeches or video & audio recording. It can also serve as a nice tool for fitness/exercise instructors and teachers. This set of wireless microphone is packaged well in a delicate box so that it can be as a Birthday/Valentines/Usual gift for microphone/vlog aficionados.

Conclusion

All above are our suggestions for speech amplifier. This might not suit you, so we prefer that you read all detail information also customer reviews to choose yours. Please also help to share your experience when using speech amplifier with us by comment in this post. Thank you!