---
product_id: 524733121
title: "ZK-TB21 High Power Amplifier Board 2.1 Channel Bluetooth Digital Amplifier Board"
brand: "walfront"
price: "AR$68238"
currency: ARS
in_stock: true
category: "Walfront"
url: https://www.desertcart.com.ar/products/524733121-zk-tb21-high-power-amplifier-board-2-1-channel-bluetooth
store_origin: AR
region: Argentina
---

# Bluetooth + AUX dual input 50W max output power 12-24V wide voltage range ZK-TB21 High Power Amplifier Board 2.1 Channel Bluetooth Digital Amplifier Board

**Brand:** walfront
**Price:** AR$68238
**Availability:** ✅ In Stock

## Summary

> 🎶 Elevate your sound game — power, clarity, and wireless freedom in one sleek board!

## 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?** AR$68238 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/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 & Portable Design:** Small footprint means you can easily integrate this amplifier board into any setup or take it on the go.
- • **AM Interference Suppression:** Enjoy crystal-clear audio with advanced AM interference reduction technology for noise-free listening.
- • **Powerful 2.1 Channel Output:** Experience immersive sound with 50W peak power driving your subwoofer and stereo channels flawlessly.
- • **Robust Protection Mechanisms:** Stay worry-free with built-in safeguards against overvoltage, undervoltage, overheating, DC faults, and short circuits.
- • **Seamless Bluetooth Connectivity:** Cut the cords and stream your favorite playlists effortlessly with integrated Bluetooth and AUX inputs.

## Overview

The Walfront ZK-TB21 is a high-power 2.1 channel digital amplifier board featuring 50W output, Bluetooth and AUX inputs, and comprehensive protection circuits. Designed for compactness and durability, it suppresses AM interference and operates efficiently within a 12-24V supply range, making it ideal for professional-grade audio projects and upgrades.

## 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.

## 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 | #9,238 in Electronics ( See Top 100 in Electronics ) #22 in Home Audio Amplifiers |
| Brand Name | Walfront |
| Country Of Origin | China |
| Customer Reviews | 4.1 4.1 out of 5 stars (107) |
| Included Components | inc |
| Manufacturer | Walfront |
| Material Type | Material |
| Maximum Output Power | 100W |
| Maximum Supply Voltage | 24 Volts (DC) |
| Minimum Supply Voltage | 12 Volts (DC) |
| Model | TB21 |
| Mounting Type | Surface Mount |
| Number of Channels | 2 |
| Output Power | 50 Watts |
| Package Type Name | Box" (meaning 'Box' in Spanish) |
| Part Number | TB21 |
| Specification Met | FCC |
| Supply Current | 5 Amps |
| Voltage | 24 Volts |

## 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

## Frequently Bought Together

- ZK-TB21 High Power Amplifier Board 2.1 Channel Bluetooth Digital Amplifier Board
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**Shop now:** [https://www.desertcart.com.ar/products/524733121-zk-tb21-high-power-amplifier-board-2-1-channel-bluetooth](https://www.desertcart.com.ar/products/524733121-zk-tb21-high-power-amplifier-board-2-1-channel-bluetooth)

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*Product available on Desertcart Argentina*
*Store origin: AR*
*Last updated: 2026-05-10*