---
product_id: 648536070
title: "Voice Amplifier for Teachers, Portable Speaker with Wired Microphone, Personal PA System and Megaphone, 18W, 4400mAh, Feature Bluetooth, Record, Waterproof, for Teaching, Speech Tour Guide M800"
brand: "w winbridge"
price: "11456830₫"
currency: VND
in_stock: true
reviews_count: 5
category: "W Winbridge"
url: https://www.desertcart.vn/products/648536070-voice-amplifier-for-teachers-portable-speaker-with-wired-microphone-personal
store_origin: VN
region: Vietnam
---

# IPX5 waterproof & shockproof 18W powerful output 4400mAh long-lasting battery Voice Amplifier for Teachers, Portable Speaker with Wired Microphone, Personal PA System and Megaphone, 18W, 4400mAh, Feature Bluetooth, Record, Waterproof, for Teaching, Speech Tour Guide M800

**Brand:** w winbridge
**Price:** 11456830₫
**Availability:** ✅ In Stock

## Summary

> 🎤 Amplify your presence, wherever your voice needs to be heard!

## Quick Answers

- **What is this?** Voice Amplifier for Teachers, Portable Speaker with Wired Microphone, Personal PA System and Megaphone, 18W, 4400mAh, Feature Bluetooth, Record, Waterproof, for Teaching, Speech Tour Guide M800 by w winbridge
- **How much does it cost?** 11456830₫ with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.vn](https://www.desertcart.vn/products/648536070-voice-amplifier-for-teachers-portable-speaker-with-wired-microphone-personal)

## Best For

- w winbridge enthusiasts

## Why This Product

- Trusted w winbridge brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **All-Day Power:** 4400mAh battery delivers up to 12 hours of uninterrupted amplification—no mid-session silences.
- • **Ergonomic & Portable:** Lightweight 450g design with belt clip and neck strap for hands-free, on-the-go use.
- • **Built to Brave the Elements:** IPX5-rated waterproof and shockproof design keeps you going rain or shine.
- • **Crystal-Clear Voice Projection:** 18W output ensures your voice cuts through any crowd, indoors or outdoors.
- • **Seamless Connectivity & Playback:** Bluetooth, Aux, TF card, and U disk support let you amplify your voice and play music simultaneously.

## Overview

The M800 Voice Amplifier is a rugged, portable PA system delivering 18W of clear sound powered by a 4400mAh battery for up to 12 hours. Featuring Bluetooth, wired microphone input, and multi-source playback (Aux, TF card, U disk), it’s designed for teachers, guides, and presenters who demand reliable voice projection indoors and outdoors. Its IPX5 waterproof and shockproof build ensures durability, while ergonomic accessories like a belt clip and neck strap offer ultimate portability.

## Description

If you are looking for one voice amplifier specially for outdoors, then this model M800 is perfect for you. As a voice amplifier / Megaphone As a Bluetooth speaker / External speaker IPX4 Dust-proof Shockproof ●Amplify your voice and save your throat ●Small and compact, this nifty little voice amplifier speaker offers good sound quality. ●The headset is adjustable and fits comfortably. ●There are slots to add little SIMcards and drives for music and more. ●Perfect for group events and presentations ●Compatible with all audio device to be a portable speaker. Specification: Output Power: 18W Battery Capacity: 3.7V, 4400mAh Charging voltage: 5V, 1A Charging Time: 3 ~ 5 hours Working Time: 10 ~12 hours. (it depends on how do you use) Pacakge includes: 1*amplifier speaker/ 1*headset mic/ 1*waistband/ 1*charging cable/ 1*5V charger / 1*audio cable/ 1*manual

Review: I used this when working with a class of young children during Covid. It meant I was able to keep a mask on for extra protection. Littlies don’t respect personal space!
Review: ممتاز لكنه يؤلم بالاذن و صوته يحتاج تقوية

## Features

- It's great as a loudspeaker because the voice projection is clear and loud. Suitable for classroom and even outdoor spaces. Portable voice Amplifier is well built, its firm and very sturdy when hold in hand ! Please be noted that headset microphone is WIRED but NOT wireless.
- Portable voice amplifier support Bluetooth, 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.
- Waterproof voice amplifier's 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 voice amplifier and aid speaker or megaphone or mini amp for you.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B07BDJ4TRQ |
| Audio Input | Aux, TF card, U disk, Mic |
| Audio Wattage | 18 Watts |
| Batteries | 1 Lithium Polymer batteries required. (included) |
| Best Sellers Rank | #11,942 in Musical Instruments ( See Top 100 in Musical Instruments ) #168 in PA Systems |
| Colour Screen | No |
| Connector Type | Aux |
| Country of Origin | USA |
| Customer Reviews | 4.3 4.3 out of 5 stars (416) |
| Date First Available | 23 May 2019 |
| Item Dimensions LxWxH | 9.4 x 4.3 x 11.4 Centimeters |
| Item Weight | 450 g |
| Item model number | WB800 |
| Mounting Type | Portable |
| Number of Channels | 1 |
| Power Source | Battery Powered |
| Product Dimensions | 9.4 x 4.32 x 11.43 cm; 450 g |
| Size | M800 |
| Speaker Count | 1 |
| Voltage | 5 Volts |
| Wattage | 25 Watts |

## Product Details

- **Brand:** W WINBRIDGE
- **Colour:** Green
- **Compatible Devices:** Headset, Laptop
- **Connectivity Technology:** AUX, Bluetooth
- **Item dimensions L x W x H:** 9.4 x 4.3 x 11.4 Centimeters

## Images

![Voice Amplifier for Teachers, Portable Speaker with Wired Microphone, Personal PA System and Megaphone, 18W, 4400mAh, Feature Bluetooth, Record, Waterproof, for Teaching, Speech Tour Guide M800 - Image 1](https://m.media-amazon.com/images/I/71MQ+QL3NKL.jpg)

## Available Options

This product comes in different **Size** options.

## Questions & Answers

**Q: does this need a sim card for the recording function?**
A: Yes, this voice amplifier need a TF card or U drive for the recording function. The item itself doesn't have memory to save recording data. 
Kindly be informed that it is TF card but not sim card.

Thanks

**Q: Is it possible to disable the Bluetooth so people cannot have access to the speaker while teaching?**
A: Hi, sorry to tell you that you can't disable the Bluetooth directly. However, kindly inform you that people have to manually press the button M on the speaker to switch to Bluetooth but NOT like other devices could directly be access to it. 

Thank you.

**Q: Can I set up 2 voice amplifers for a larger room and just use one mic?**
A: Hi,

This model voice amplifier comes with wired headset but not wireless, so you can't set up 2 voice amplifier with one mic. However. This voice speaker is specially designed for outdoors, so even it is 10W output powerful but it louder than the 25 watts. 

Or if you would like to choose a more powerful voice amplifier, kindly suggest you our another model S92 25W portable pa system (with handheld mic and headst mic ) or H2 30W pa system. If you are insterested in them, please click the following link for more item detailed information:

https://www.amazon.com/gp/product/B01AA8JU7A

Thank you.

**Q: I teach water aerobics is everything water proof?  I need a headset I can wear while I am in the water instructing the class**
A: This wouldn’t last in the pool. It’s more water resistant. The plugs have covers to keep water out. But if you want to plug a headset in, your going to half to remove the cover and exposing the plugs. I’d say it would be fine for poolside if you can find a water proof Bluetooth headset.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Review
*by Q***. on 13 September 2023*

I used this when working with a class of young children during Covid. It meant I was able to keep a mask on for extra protection. Littlies don’t respect personal space!

### ⭐⭐⭐⭐⭐ Review
*by T***ر on 20 October 2025*

ممتاز لكنه يؤلم بالاذن و صوته يحتاج تقوية

### ⭐⭐⭐⭐⭐ Review
*by E***E on 29 August 2023*

I can't contain my excitement to share my thoughts on the WINBRIDGE Voice Amplifier, a true game changer in the world of Bluetooth speakers. As someone deeply involved in church activities, including delivering messages and leading congregational gatherings, I've always sought reliable audio equipment to ensure my voice reaches every corner of our space. This speaker has exceeded all my expectations, and I'm thrilled to write this review. Let me start by saying that this is, without a doubt, the best speaker I have ever owned. Its Bluetooth capability is just the beginning of its impressive features. Whether I'm addressing a small group or a larger congregation, the clarity and strength of the sound projection from this speaker are simply unmatched. It has the power to effortlessly fill the room with my voice, ensuring that everyone can hear my message loud and clear. Speaking from experience with various wireless speakers, the WINBRIDGE Voice Amplifier stands out. Its ability to maintain crystal-clear audio quality even from a considerable distance is remarkable. This is especially crucial during our outdoor events or gatherings in larger spaces where amplification becomes a necessity. I've never encountered a speaker that can maintain such consistent and high-quality sound projection. One of the standout features of this speaker is its reliability. The last thing I need during a church service or event is technical glitches or sudden audio dropouts. With the WINBRIDGE Voice Amplifier, those worries are a thing of the past. Its robust connectivity and stable Bluetooth performance have earned my trust, allowing me to focus on delivering my message rather than worrying about the equipment. The speaker's design is sleek and practical, with user-friendly controls that are easy to navigate. Its portability is another big plus, making it effortless to carry and set up wherever needed. The battery life is impressive as well, ensuring that it lasts through even longer events without a hitch. In conclusion, the WINBRIDGE Voice Amplifier has truly elevated my church activities. As Pastor, having a reliable and powerful speaker that can deliver my messages effectively is essential, and this speaker has become an integral part of my toolkit. Its exceptional Bluetooth capability, outstanding sound projection, and reliability make it stand head and shoulders above any other wireless speaker I've ever owned.

## Frequently Bought Together

- Voice Amplifier for Teachers, Portable Speaker with Wired Microphone, Personal PA System and Megaphone, 18W, 4400mAh, Feature Bluetooth, Record, Waterproof, for Teaching, Speech Tour Guide M800
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*Product available on Desertcart Vietnam*
*Store origin: VN*
*Last updated: 2026-02-26*