---
product_id: 548353932
title: "Voice Amplifier for Teachers with Bluetooth, Portable Rechargeable Wireless Voice Amplifier with Headset Microphone Portable Megaphone Speaker for Teaching, Coach, Instructor, Tour Guide"
brand: "bietrun"
price: "AR$167277"
currency: ARS
in_stock: true
url: https://www.desertcart.com.ar/products/548353932-voice-amplifier-for-teachers-with-bluetooth-portable-rechargeable-wireless-voice
store_origin: AR
region: Argentina
---

# Bluetooth 5.0 with 30m range 20W UHF peak power 12h battery life + 3h recharge Voice Amplifier for Teachers with Bluetooth, Portable Rechargeable Wireless Voice Amplifier with Headset Microphone Portable Megaphone Speaker for Teaching, Coach, Instructor, Tour Guide

**Brand:** bietrun
**Price:** AR$167277
**Availability:** ✅ In Stock

## Summary

> 🎤 Own the room, amplify your impact.

## Quick Answers

- **What is this?** Voice Amplifier for Teachers with Bluetooth, Portable Rechargeable Wireless Voice Amplifier with Headset Microphone Portable Megaphone Speaker for Teaching, Coach, Instructor, Tour Guide by bietrun
- **How much does it cost?** AR$167277 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.com.ar](https://www.desertcart.com.ar/products/548353932-voice-amplifier-for-teachers-with-bluetooth-portable-rechargeable-wireless-voice)

## 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 Battery Power:** Rechargeable 2000mAh battery delivers up to 12 hours of nonstop amplification, with quick 3-hour charging.
- • **Smart Power Saving Mode:** Automatically enters sleep mode after 20 seconds of silence to maximize battery life during long sessions.
- • **Crystal-Clear 20W UHF Sound:** Amplify your voice with powerful, distortion-free clarity across 10,000 sq.ft — never strain your throat again.
- • **Ultra-Light & Wearable Design:** Weighing just 0.45 lb with a secure belt clip and waistband strap, it’s built for on-the-go pros.
- • **Seamless Bluetooth 5.0 Connectivity:** Effortlessly pair your device within 30 meters for wireless freedom and multi-source audio support.

## Overview

This portable voice amplifier features a 20W UHF transmitter delivering clear sound over 10,000 sq.ft, a rechargeable 2000mAh battery lasting 12 hours, and Bluetooth 5.0 for wireless connectivity. Lightweight and wearable with smart power-saving, it’s ideal for teachers, coaches, and guides seeking effortless voice amplification.

## Description

Voice Amplifier for Teachers with Bluetooth, Portable Rechargeable Wireless Voice Amplifier with Headset Microphone Portable Megaphone Speaker for Teaching, Coach, Instructor, Tour Guide

## Features

- Warm Tips: Do not put the microphone in front of the voice amplifier when using it, otherwise it may cause noise or statics.
- ★UHF 20W Voice Amplifier:The Bietrun voice amplifier adopts UHF transmission, with 20W peak power to output powerful, clear, crisp and no noise & distortion sound. ★It covers about 10000 sq.ft (1000 ㎡), and the stable performance perfect for amplifying your sound and saving your throat.
- ★Rechargeable and Long Battery life: Personal voice amplifier built-in a 2000mAh rechargeable lithium battery, works 12 hours at max volume and takes only 3H with a full charge.★The wireless microphone can be used for about 6 hours. ★2 in 1 charging cable(Included) charges amplifier and wireless mic simultaneously.★If no input signal is detected within 20 seconds, speaker will enter sleep mode automatically to save power.
- ★Portbale, Lightweight and Compact: The speaker is a portable public address system.★Weights only 0.45 lb/204g, equipped with a back clip to fix the device at your belt or pocket, or you can hang it around your waist with the included waistband belt. ★You can use this in any setting from indoor to outdoor use, perfect for teachers, coaches, training, presentation, tour guide, classrooms etc. A big help in speaking to 50+ members in your group.
- ★Bluetoothe & Multi-function: Touch the SOURCE button 3 times to switch to bluetooth 5.0(30M) mode, then turns on Bluetooth on the phone, search "Bietrun” and pair it. ★Support TF(Micro SD) card, USB Disk, FM radio, Recording(Only in wired mic mode), 3.5mm AUX audio input and touch display.★You can long press Play/Pause button to repeat single tune or loop all music. ★Please make sure the TF card/USB Disk(Not included) is inserted before recording.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B09P2T2FP7 |
| Antenna Location | Singing |
| Audio Input | Wired microphone, Wireless microphone, 3.5mm AUX audio input, TF card |
| Best Sellers Rank | #30,753 in Musical Instruments ( See Top 100 in Musical Instruments ) #162 in Wireless Headset Microphones & Systems |
| Brand | Bietrun |
| Built-In Media | Charging Cable, Voice Amplifier, Waistband Belt, Wired Microphone Headset, Wireless Microphone Headset |
| Color | Black |
| Compatible Devices | MP3, Smartphone, TF Card, U DIisk |
| Connectivity Technology | Bluetooth, UHF |
| Connector Type | Aux |
| Customer Reviews | 4.1 out of 5 stars 257 Reviews |
| Enclosure Material | Metal, Plastic |
| Item Dimensions | 3.54 x 1.18 x 4.52 inches |
| Item Weight | 300 Grams |
| Item dimensions L x W x H | 3.54 x 1.18 x 4.52 inches |
| Manufacturer | Bietrun |
| Mfr Part Number | TS-230 |
| Model Number | TS-230 |
| Mounting Type | back clip |
| Number of Channels | 60 |
| Output Wattage | 20 Watts |
| Power Source | Battery Powered |
| Warranty Description | One Year warranty |

## Product Details

- **Brand:** Bietrun
- **Item dimensions L x W x H:** 9 x 3 x 11.5 centimeters
- **Connectivity technology:** Bluetooth, UHF
- **Colour:** Black
- **Compatible devices:** MP3, Smartphone, TF Card, U DIisk

## Images

![Voice Amplifier for Teachers with Bluetooth, Portable Rechargeable Wireless Voice Amplifier with Headset Microphone Portable Megaphone Speaker for Teaching, Coach, Instructor, Tour Guide - Image 1](https://m.media-amazon.com/images/I/81QYt53POyL.jpg)

## Available Options

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

## Questions & Answers

**Q: Should we carry all the time during conference or can we place it on somewhere on table**
A: I give tours with it in my vehicle and I sit the speaker in the area of the passengers and it works great

**Q: no charger included?**
A: Call the sale people. Usually, these kits have a USB connection with them.

**Q: How to I get my iPhone music to play through the amp while simultaneously speaking into the wireless head set mike to call out line dance steps?**
A: I connect my iPhone via bluetooth to the speaker I'm using, and that's where my music comes from. (I use this mic to teach a fitness class, so my microphone plug is connected to a second speaker in the studio.)

**Q: Will i be able to hear my students through this device?**
A: The headset doesn’t cover your ears, so hearing things is all based on how loud your music is

## Frequently Bought Together

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**Shop now:** [https://www.desertcart.com.ar/products/548353932-voice-amplifier-for-teachers-with-bluetooth-portable-rechargeable-wireless-voice](https://www.desertcart.com.ar/products/548353932-voice-amplifier-for-teachers-with-bluetooth-portable-rechargeable-wireless-voice)

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*Product available on Desertcart Argentina*
*Store origin: AR*
*Last updated: 2026-05-22*