---
product_id: 524733121
title: "ZK-TB21 High Power Amplifier Board 2.1 Channel Bluetooth Digital Amplifier Board"
brand: "walfront"
price: "€ 32.29"
currency: EUR
in_stock: true
reviews_count: 7
category: "Walfront"
url: https://www.desertcart.nl/products/524733121-zk-tb21-high-power-amplifier-board-2-1-channel-bluetooth
store_origin: NL
region: Netherlands
---

# Bluetooth wireless audio input 2.1 channel high power output Multi-layer protection system ZK-TB21 High Power Amplifier Board 2.1 Channel Bluetooth Digital Amplifier Board

**Brand:** walfront
**Price:** € 32.29
**Availability:** ✅ In Stock

## Summary

> 🎶 Elevate your sound game with power and precision!

## Quick Answers

- **What is this?** ZK-TB21 High Power Amplifier Board 2.1 Channel Bluetooth Digital Amplifier Board by walfront
- **How much does it cost?** € 32.29 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.nl](https://www.desertcart.nl/products/524733121-zk-tb21-high-power-amplifier-board-2-1-channel-bluetooth)

## Best For

- walfront enthusiasts

## Why This Product

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

## Key Features

- • **Compact & Durable Design:** Small footprint with premium materials ensures portability and long-lasting use.
- • **Robust 2.1 Channel Output:** Experience immersive sound with dedicated subwoofer and stereo channels.
- • **Comprehensive Safety Mechanisms:** Built-in overvoltage, undervoltage, overheating, DC detection, and short circuit protection for reliable performance.
- • **Seamless Bluetooth Connectivity:** Stream your favorite playlists wirelessly with crystal-clear audio.
- • **Advanced AM Interference Suppression:** Enjoy uninterrupted, noise-free listening even in busy signal environments.

## Overview

The Walfront ZK-TB21 is a compact yet powerful 2.1 channel Bluetooth digital amplifier board featuring advanced AM interference suppression and a comprehensive protection system. Designed for audiophiles seeking high-quality wireless audio with robust safety and durability, it delivers clear, low-noise sound with dedicated subwoofer and stereo outputs.

## Description

Buy Walfront ZK-TB21 High Power Amplifier Board 2.1 Channel Bluetooth Digital Amplifier Board online on desertcart.ae at best prices. ✓ Fast and free shipping ✓ free returns ✓ cash on delivery available on eligible purchase.

Review: Low noise , no heat clear sounds . - I love this product . Only problem is mount in amplifier case .
Review: Great product - Amazing thing

## Features

- 【Bluetooth function】With AUX + for Bluetooth audio input, subwoofer + left and right channel output.
- 【AM interference】The power amplifier chip has AM interference suppression function.
- 【 mechanism】The mechanism includes overvoltage, undervoltage, overheating, DC detection, and short circuit , which is relatively .
- 【strong and 】Using materials, strong and , has a long service life.
- 【convenient to use】With small size, easy to carry and store, convenient to use and with good performance.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B08GZBJWFZ |
| Best Sellers Rank | #12,332 in Electronics ( See Top 100 in Electronics ) #31 in Home Audio Amplifiers |
| Country of origin | China |
| Item model number | TB21 |
| Manufacturer | Walfront |

## Product Details

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

## Images

![ZK-TB21 High Power Amplifier Board 2.1 Channel Bluetooth Digital Amplifier Board - Image 1](https://m.media-amazon.com/images/I/61QS71jTRIL.jpg)

## Questions & Answers

**Q: Does is comes with a power supply? what's the recommended one?**
A: Hello, without power supply
Applicable power adapter 5V 1A

## Customer Reviews

### ⭐⭐⭐⭐⭐ Low noise , no heat clear sounds .
*by R***A on 31 August 2024*

I love this product . Only problem is mount in amplifier case .

### ⭐⭐⭐⭐⭐ Great product
*by M***A on 20 May 2024*

Amazing thing

### ⭐⭐⭐⭐⭐ Review
*by R***S on 28 January 2026*

Best Quality sound quality is best quality wise very very nice quality subwoofer is very good

## Frequently Bought Together

- ZK-TB21 High Power Amplifier Board 2.1 Channel Bluetooth Digital Amplifier Board
- 100W+100W Amplifier Board with Treble and Bass Control, DC 9-24V, BT and AUX Inputs, 2.0 Channel Stereo AMP Board for DIY Wireless Speakers, Password Free (ZK-1002T)
- Dayton Audio DAEX58FP Flat Pack 58mm Exciter 25W 8 Ohm

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**Shop now:** [https://www.desertcart.nl/products/524733121-zk-tb21-high-power-amplifier-board-2-1-channel-bluetooth](https://www.desertcart.nl/products/524733121-zk-tb21-high-power-amplifier-board-2-1-channel-bluetooth)

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*Product available on Desertcart Netherlands*
*Store origin: NL*
*Last updated: 2026-02-21*