---
product_id: 154091232
title: "Voice Amplifier for Teachers-Bietrun, 20W 2000mAh Rechargeable(Working Time 20 Hrs), Microphone Headset and Speaker Set with FM Radio, Recording, USB+TF Card Play, for Meetings,Teaching, Coach"
brand: "bietrun"
price: "609 kr"
currency: ISK
in_stock: false
reviews_count: 8
url: https://www.desertcart.is/products/154091232-voice-amplifier-for-teachers-bietrun-20w-2000mah-rechargeable-working-time
store_origin: IS
region: Iceland
---

# 20H Runtime 20W Power 2000mAh Battery Voice Amplifier for Teachers-Bietrun, 20W 2000mAh Rechargeable(Working Time 20 Hrs), Microphone Headset and Speaker Set with FM Radio, Recording, USB+TF Card Play, for Meetings,Teaching, Coach

**Brand:** bietrun
**Price:** 609 kr
**Availability:** ❌ Out of Stock

## Summary

> 🎤 Amplify Your Impact!

## Quick Answers

- **What is this?** Voice Amplifier for Teachers-Bietrun, 20W 2000mAh Rechargeable(Working Time 20 Hrs), Microphone Headset and Speaker Set with FM Radio, Recording, USB+TF Card Play, for Meetings,Teaching, Coach by bietrun
- **How much does it cost?** 609 kr with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.is](https://www.desertcart.is/products/154091232-voice-amplifier-for-teachers-bietrun-20w-2000mah-rechargeable-working-time)

## Best For

- bietrun enthusiasts

## Why This Product

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

## Key Features

- • **All-Day Power:** Rechargeable battery lasts up to 20 hours.
- • **Unleash Your Voice:** Cover up to 1000 sq. meters effortlessly!
- • **Worry-Free Warranty:** 1-year warranty for peace of mind.
- • **Multi-Functional Marvel:** Supports USB, TF card, and AUX input.
- • **Plug & Play Convenience:** Easy setup with wired or wireless options.

## Overview

The Bietrun Voice Amplifier is a powerful 20W device designed for teachers, trainers, and coaches, featuring a 2000mAh rechargeable battery that provides up to 20 hours of continuous use. It supports multiple playback options, including USB and TF card, and comes with a wired headset microphone for easy use. With a 1-year warranty, this versatile amplifier is perfect for any speaking engagement.

## Description

Full description not available

## Features

- ★20w High-powered voice amplifier: ★The Bietrun voice amplifier with 20W large speakers can cover approximately 1000 square meters. Voice Amplifier for teacher, trainer, singer, coacher, tour guide, shopping mall, presentation, outdoor speech and etc.
- ★2000mAH-rechargeable voice amplifier: ★Built in 2000 mAh rechargeable lithium battery. Continuously working time up to 20 hours. You can use USB cable to charge this mini voice amplifier( Power Supply 5V-0.5A) and it only needs 3hours to be fully charged.
- ★Multi-function mini voice amplifier: ★Support TF card playback and USB flash drive playback. Support 3.5mm AUX audio input, Can Be used as a wired speaker. One-touch recording, only need to insert a TF card or microphone for recording. Additional FM radio and display capabilities, let you see at a glance.
- ★Plug and play: The voice amplifier comes with a wired headset microphone headset, just turn on the voice amplifier and plug in the microphone headset to use. ★Or choose this BietrunWXM01 wireless microphone headset so you can move freely in the classroom.
- ★Packag list and 1year warranty : Bietrun offers 1 year warranty and free replacement service.When there're problems, write to us and we will solve your problems quickly. Packag: 1 x Voice Amplifier, 1 x Headset Microphone, 1 x USB Charging Cable, 1 x 3.5mm Audio MP3 Cable, 1 x Adjustable Strap, 1 x Instruction .

## Product Details

- **Brand:** Bietrun
- **Item dimensions L x W x H:** 3.3 x 1.4 x 4.6 inches
- **Connectivity Technology:** USB, AUX
- **Color:** KYQ01
- **Compatible Devices:** Headset

## Images

![Voice Amplifier for Teachers-Bietrun, 20W 2000mAh Rechargeable(Working Time 20 Hrs), Microphone Headset and Speaker Set with FM Radio, Recording, USB+TF Card Play, for Meetings,Teaching, Coach - Image 1](https://m.media-amazon.com/images/I/81xgJnGZw1L.jpg)
![Voice Amplifier for Teachers-Bietrun, 20W 2000mAh Rechargeable(Working Time 20 Hrs), Microphone Headset and Speaker Set with FM Radio, Recording, USB+TF Card Play, for Meetings,Teaching, Coach - Image 2](https://m.media-amazon.com/images/I/81PZoy1DpsL.jpg)
![Voice Amplifier for Teachers-Bietrun, 20W 2000mAh Rechargeable(Working Time 20 Hrs), Microphone Headset and Speaker Set with FM Radio, Recording, USB+TF Card Play, for Meetings,Teaching, Coach - Image 3](https://m.media-amazon.com/images/I/81A0I+gBQTL.jpg)
![Voice Amplifier for Teachers-Bietrun, 20W 2000mAh Rechargeable(Working Time 20 Hrs), Microphone Headset and Speaker Set with FM Radio, Recording, USB+TF Card Play, for Meetings,Teaching, Coach - Image 4](https://m.media-amazon.com/images/I/817DLBzA3KL.jpg)
![Voice Amplifier for Teachers-Bietrun, 20W 2000mAh Rechargeable(Working Time 20 Hrs), Microphone Headset and Speaker Set with FM Radio, Recording, USB+TF Card Play, for Meetings,Teaching, Coach - Image 5](https://m.media-amazon.com/images/I/811W7nK+A5L.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ 5.0 out of 5 stars







  
  
    I'm REALLY impressed.
  

*by L***N on Reviewed in the United States on July 2, 2020*

This thing is nuts -1. A digital radio!2. A sound amplifier!3. MP3 player!Generally good. About what you would expect from a voice amplifier, a bit tinny - but loud and clear if you are.MP3 player works, but only on one type of memory, and not both as the instructions say.Radio is aces.

### ⭐⭐⭐⭐ 4.0 out of 5 stars







  
  
    Unit is lightweight; easy to setup and works well.
  

*by D***S on Reviewed in the United States on October 15, 2019*

Okay, first we've only had the system for about a week.  Size is great.  Volume level seems fine.  The speaker is lightweight and easy to use.  Sound quality could be a little better.  For the price I think it will be a good product for our uses.  I'll update this review after we've used it for a couple of months.  It does have a one year warranty which is nice.  Hopefully it will exceed the warranty by several years.

### ⭐⭐⭐⭐⭐ 5.0 out of 5 stars







  
  
    My students hate it!  Lol
  

*by I***0 on Reviewed in the United States on November 24, 2019*

UPDATE - I’m concerned about being heard through my mask when we go back to school. So I charged this up and tested it wearing a mask. It works beautifully.I love this thing!I teach 7th grade history. My classes are only 45 minutes long, so every second is precious. This cuts down on the amount of time I spend redirecting at the beginning of each class. I’m soft spoke naturally so I don’t have to strain to be heard. I still have a voice by the end of the day and I’m no quite as exhausted.I can pre-record books on it using a flash drive. Then I can play them and monitor behavior or take attendance. I also don’t have to read the same book 6 times.My students hate it. They say I sound like I’m taking their order in a drive through. The voice recordings don’t sound that way. I think they don’t like the fact that I now drown out their side conversations.

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---

*Product available on Desertcart Iceland*
*Store origin: IS*
*Last updated: 2026-03-03*