Perfect megaphone for crowd control and events
"The voice changer is also a great fun feature to engage the crowd. The headset fits securely and comfortably."
Built for clear hands-free speech in classrooms, tours, meetings and outdoor activities.
18W RMS output projects speech clearly without forcing you to shout.
Hands-free headset mic keeps your voice consistent while you move.
The amplifier is rated IPX5 for rain, splashes and active outdoor use.
Up to about 10–12 hours of voice amplification on a full charge.
Plug-and-play / No frequency coordination
Bluetooth, USB, TF card, AUX and recording expand everyday use.

A compact personal PA system for people who speak while moving.
Project lessons clearly while keeping both hands free for teaching.
Lightweight wearable amplification helps groups hear you on the move.
IPX5 protection makes the speaker better suited to changing conditions.
Useful for workshops, demonstrations, promotions and small events.

Simple controls, portable size and flexible audio playback for daily work.
Key specifications from the current product page.
| Model | WinBridge M800 |
| Output Power | 18W RMS / 90W PMPO |
| Microphone | Wired headset microphone |
| Microphone jack | 3.5mm |
| Amplifier Battery | 4400mAh lithium battery |
| Voice Amplifying Time | About 10–12 hours |
| Headset Battery | No |
| Usage method | Plug and Play |
| Charging Time | About 3–5 hours |
| Water Protection | IPX5 amplifier body; headset mic is not waterproof |
| Connectivity | Bluetooth 4.2, |
| Inputs | USB, Micro SD/TF, AUX, Mic |
| Other Features | Recording, music playback, emergency power-bank function |
| Weight | About 0.86 lb / 12 oz |
| Dimensions | Approx. 1.8 × 3.8 × 4.7 in |
Short answers to common questions about this waterproof voice amplifier.
Yes. Its 18W RMS output, wired headset and compact body are designed for hands-free classroom voice amplification.
The amplifier body is rated IPX5 against water jets and drops. The head-worn microphone is not waterproof.
The 4400mAh amplifier is rated for about 10–12 hours of voice amplification.
The M800 voice amplifier system is equipped with a wired headset microphone, not a wireless unit. Therefore, it does not have a "wireless range" specification.
Yes. It supports Bluetooth 4.2 plus AUX, USB and TF card playback.
Yes. The compact build and IPX5 amplifier body make it suitable for tours, outdoor meetings, fitness and other mobile speaking situations.
Portable voice amplification for classrooms, tours, training and outdoor use.
View WinBridge M800The WinBridge M800 is a portable voice amplifier with a headset microphone for teachers, tour guides, trainers and outdoor speakers. It combines 18W RMS voice output, IPX5 water protection, a 4400mAh rechargeable battery, Bluetooth 4.2, USB, TF card, AUX and recording in a compact wearable body. The M800 is designed for hands-free speech amplification where portability, clear voice projection and outdoor durability matter.
Tailored voice amplification solutions for every professional and passion.
Overall rating: 4.92 / 5 from 50 reviews.
The WinBridge M800 Voice Amplifier is a multifunctional device praised for its durable design, impressive sound quality, and long battery life. It is ideal for presentations, meetings, and outdoor activities, offering features like recording, loop playback, and aux input. The product is also waterproof and shockproof, making it suitable for various environments.
Review topics: [].
"The voice changer is also a great fun feature to engage the crowd. The headset fits securely and comfortably."
"The voice projection is incredibly clear, and the overall unit is very tough and waterproof. The controls are easy to use, and the battery life is superb."
"The headset is comfortable, the speaker is incredibly durable, and the sound quality is top-notch."
"The battery on this unit is amazing and lasts for days of intermittent use."
"This speaker is lightweight enough to carry with the shoulder strap or clip to your pants."
"The olive green casing looks amazing and provides excellent shock absorption."
"Highly durable speaker with excellent water resistance. It has survived rain, splashes, and dirt."
"The mic amplification was crisp, and we also used it to play music during breaks."
"The sound clarity is outstanding, the battery life is endless, and the physical design is beautiful and tough. 10-10 product."
"The headset mic is comfortable for long wear."
Related Products
!