---
product_id: 486748381
title: "Audio Amplifier Module ZK-MT21 2.1 Channel Bluetooth Digital Power Amplifier Board"
brand: "wangcl"
price: "KSh5905"
currency: KES
in_stock: true
reviews_count: 13
category: "Wangcl"
url: https://www.desertcart.co.ke/products/486748381-audio-amplifier-module-zk-mt21-2-1-channel-bluetooth-digital
store_origin: KE
region: Kenya
---

# 200W max output power Bluetooth 5.0 wireless connectivity Wide 12-24V operating voltage Audio Amplifier Module ZK-MT21 2.1 Channel Bluetooth Digital Power Amplifier Board

**Brand:** wangcl
**Price:** KSh5905
**Availability:** ✅ In Stock

## Summary

> 🔊 Elevate your sound game with power, precision, and wireless freedom!

## Quick Answers

- **What is this?** Audio Amplifier Module ZK-MT21 2.1 Channel Bluetooth Digital Power Amplifier Board by wangcl
- **How much does it cost?** KSh5905 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.co.ke](https://www.desertcart.co.ke/products/486748381-audio-amplifier-module-zk-mt21-2-1-channel-bluetooth-digital)

## Best For

- wangcl enthusiasts

## Why This Product

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

## Key Features

- • **Built to Last:** Advanced protections guard against overheating, over-voltage, and reverse polarity—reliability you can trust.
- • **Compact & Versatile:** Miniature 2.1 channel design fits anywhere from home theaters to retail spaces, making premium sound accessible everywhere.
- • **Powerhouse Performance:** Delivers a robust 2x50W + 100W output for immersive sound that fills any space.
- • **Pro-Grade Connectivity:** Copper DC connectors and fence-type terminals handle high current without heat or damage—engineered for longevity.
- • **Seamless Wireless Streaming:** Bluetooth 5.0 ensures stable, high-quality audio with minimal interference—cut the cords, not the vibe.

## Overview

The ZK-MT21 is a compact 2.1 channel Bluetooth 5.0 digital amplifier module delivering up to 200W total output. It operates on a wide 12-24V DC range and features robust protections against overheating, voltage irregularities, and reverse polarity. Designed with durable copper connectors and an efficient antenna system, it offers superior signal stability and anti-interference performance. Ideal for home theaters, retail audio setups, and DIY sound projects, this mini amplifier combines professional-grade power and connectivity in a sleek, easy-to-install package.

## Description

Audio Amplifier Module ZK-MT21 2.1 Channel Bluetooth Digital Power Amplifier BoardProduct Description:This amp board has overheat, reverse, circuit, over-voltage and under-voltage protection to prevent complete failure.This can be mini amplifier board widely used in store solicitation, home theater, square speakers, etc.due to its excellent performance.Adopts copper DC connector and fence type terminal, which can withstand large current, no heat, no damage to the wire.Audio power amplifier with antenna and antenna base, the signal is better, the efficiency is high, and the anti-interference ability is strong.The wireless 5.0 digital amplifier board is operated by wide working voltage 12-24V, max output power 2X50W+100W.Specification:Color: As Pic ShownSize: 9.4x9x2.2 cm/3.70x3.54x0.87 inchModel: ZK-MT21Wireless Version: 5.0Audio Input: AUX + WirelessChannel: 2.1Input sensitivity: 500mVAdaption Supply Voltage: 12-24V / 5A aboveSpeaker: 20-100W, 4-8OhmPacking List:1 * Audio amplifier module (not assembled)

Review: Tiny box with excellent sound and powerful output. - I am so very happy with this little gem. A tiny box with an awesome sound. I bought it to repair my temperamental Philips 2.1 sound system. This amplifer module requires a 12 to 24 volt DC power supply. I used an old laptop PSU which was rated 19.5V @ 2.3A. Included with the amp was a 2.1mm DC power adapater with screw-terminals, making PSU connections a total doddle. Brilliant idea... Once connected to some speakers and fed with audio, it sounded absolutely great, far superior to the original Philips amplifer. Turning the shiny volume control to between 11 and 12 o'clock was plenty loud enough for my poor old speakers. Any louder and they would probably shred or melt. I really like the adjustment of tone between the sub woofer and tweeters. I quickly found the sweet spot for my system. Listening to a variety music styles from D&B to Medieval choral demonstrated just how good a tone this amp can provide. I can't hear any hiss or hum at all. After running the amp at a good listening volume for 3 hours, I found it to be just slightly warm. The laptop PSU was still cool so I have no worries about anything overheating. Just a few minor niggles - When first plugging the power jack in to the amp I got a spark. Very worrying, but no damage done. I wonder if the power jack pins are rubbing on the case. It's a very tight fit under the PCB so I removed the base plate and stuck a layer of electrical insulating tape down there just in case. The volume control doubles as the rotary power-on switch. Be aware it takes several seconds for the amp to boot up. Be warned - Dont crank up the volume immediately because you'll certainly get a sonic shock when the amp kicks in proper!! Lastly, I haven't yet found out how to disable the bluetooth 'bing-bong' sound prompt at power up. Annoying for me but maybe not for you... Overall - Impressive sound. Compact format. Bargain price. I forgive the niggles. I love it. 5-stars I'll probably buy another for the shed...
Review: Superb Bluetooth performance with bottomless separate Sub Bass output - It was a very easy Amp to assemble, with only separating posts, front and back covers to fit. Be Cautious that there are no protruding contacts around power input as mine required cutting down to prevent a short against the back plate. Once trimmed, the Amp is powered up by the front knob and optimal volume and sub level & crossover set but is adjustable by Bluetooth and can be controlled by the Whuzi Audio App. Superb little powerhouse for the price!

## Features

- This amp board has overheat, reverse, circuit, over-voltage and under-voltage protection to prevent complete failure.
- This can be mini amplifier board widely used in store solicitation, home theater, square speakers, etc.due to its excellent performance.
- Adopts copper DC connector and fence type terminal, which can withstand large current, no heat, no damage to the wire.
- Audio power amplifier with antenna and antenna base, the signal is better, the efficiency is high, and the anti-interference ability is strong.
- The wireless 5.0 digital amplifier board is operated by wide working voltage 12-24V, max output power 2X50W+100W.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B09SL33VYD |
| Best Sellers Rank | 3,785 in Business, Industry & Science ( See Top 100 in Business, Industry & Science ) 1 in Audio Amplifier |
| Brand | WANGCL |
| Country Of Origin | China |
| Customer Reviews | 4.1 out of 5 stars 526 Reviews |
| Manufacturer | WANGCL |
| Maximum Supply Voltage | 24 Volts |
| Maximum supply voltage | 24 Volts |
| Minimum Supply Voltage | 12 Volts (DC) |
| Minimum supply voltage | 12 Volts (DC) |
| Model Number | ZK-MT21 |
| Mounting Type | Surface Mount |
| Mounting type | Surface Mount |
| Number of Channels | 2 |
| Output Power | 200 Watts |
| Package Type Name | Shipping Box" or "Envelope |
| Specification Met | RoHS |
| UPC | 610012476986 |
| Voltage | 24 Volts |

## Product Details

- **Manufacturer:** WANGCL
- **Maximum supply voltage:** 24 Volts
- **Minimum supply voltage:** 12 Volts (DC)
- **Mounting type:** Surface Mount
- **Voltage:** 24 Volts

## Images

![Audio Amplifier Module ZK-MT21 2.1 Channel Bluetooth Digital Power Amplifier Board - Image 1](https://m.media-amazon.com/images/I/51aLfHDx9eL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Tiny box with excellent sound and powerful output.
*by A***R on 10 February 2024*

I am so very happy with this little gem. A tiny box with an awesome sound. I bought it to repair my temperamental Philips 2.1 sound system. This amplifer module requires a 12 to 24 volt DC power supply. I used an old laptop PSU which was rated 19.5V @ 2.3A. Included with the amp was a 2.1mm DC power adapater with screw-terminals, making PSU connections a total doddle. Brilliant idea... Once connected to some speakers and fed with audio, it sounded absolutely great, far superior to the original Philips amplifer. Turning the shiny volume control to between 11 and 12 o'clock was plenty loud enough for my poor old speakers. Any louder and they would probably shred or melt. I really like the adjustment of tone between the sub woofer and tweeters. I quickly found the sweet spot for my system. Listening to a variety music styles from D&B to Medieval choral demonstrated just how good a tone this amp can provide. I can't hear any hiss or hum at all. After running the amp at a good listening volume for 3 hours, I found it to be just slightly warm. The laptop PSU was still cool so I have no worries about anything overheating. Just a few minor niggles - When first plugging the power jack in to the amp I got a spark. Very worrying, but no damage done. I wonder if the power jack pins are rubbing on the case. It's a very tight fit under the PCB so I removed the base plate and stuck a layer of electrical insulating tape down there just in case. The volume control doubles as the rotary power-on switch. Be aware it takes several seconds for the amp to boot up. Be warned - Dont crank up the volume immediately because you'll certainly get a sonic shock when the amp kicks in proper!! Lastly, I haven't yet found out how to disable the bluetooth 'bing-bong' sound prompt at power up. Annoying for me but maybe not for you... Overall - Impressive sound. Compact format. Bargain price. I forgive the niggles. I love it. 5-stars I'll probably buy another for the shed...

### ⭐⭐⭐⭐⭐ Superb Bluetooth performance with bottomless separate Sub Bass output
*by Z***E on 15 January 2024*

It was a very easy Amp to assemble, with only separating posts, front and back covers to fit. Be Cautious that there are no protruding contacts around power input as mine required cutting down to prevent a short against the back plate. Once trimmed, the Amp is powered up by the front knob and optimal volume and sub level & crossover set but is adjustable by Bluetooth and can be controlled by the Whuzi Audio App. Superb little powerhouse for the price!

### ⭐⭐⭐⭐ Amazing little amp NO power supply
*by M***H on 21 November 2025*

For the money... Amazing Clean and powerful sound good bass out put to subwoofer. Bluetooth handy for connecting to phone, automatic connection but to disconnect switch off Bluetooth on phone, no way to do it on the amp. Need power supply... Not included

## Frequently Bought Together

- WANGCL Audio Amplifier Module ZK-MT21 2.1 Channel Bluetooth Digital Power Amplifier Board
- electrosmart 10m Red/Black 2x 1mm 2x 89 Strand Speaker Cable Wire for Home HiFi/Car Audio etc
- 24V 6A DC Power Supply Adapter AC 100V~240V to DC 24 Volt 6 Amp 144W Converter Transformer 5.5x2.1mm Plug for LED Strip Light 3D Printer LED Driver LCD Monitor,Wireless Router,Security Cameras

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*Product available on Desertcart Kenya*
*Store origin: KE*
*Last updated: 2026-02-21*