Bluetooth 4.1 Audio Receiver Board – MP3 Lossless Decoder Module

Bluetooth Audio Receiver Board – XY-WRBT MP3 Lossless Decoder Module with Case

Upgrade any speaker, amplifier, or home audio system with this compact Bluetooth 4.1 Audio Receiver Board. Featuring MP3 lossless decoding and dual-channel stereo output, this ultra-small DIY module delivers high-fidelity, noise-free wireless audio to virtually any wired audio device. Whether you're retrofitting a car stereo, modifying a home amplifier, or building a custom audio project, this board makes wireless streaming simple and reliable. Made in Mainland China.

Key Features

• Secure Bluetooth Connection: Built-in password protection (default: 1688) prevents accidental or unauthorized connections.
• Ultra-Compact Design: Measures just 3.3 × 3.5 × 1.1 cm — easy to embed into custom builds and enclosures.
• Dual-Channel Stereo Output: Compatible with amplifiers, home audio systems, car audio setups, and more.
• Flexible Power Input: Powered via Micro USB port or 2.54mm pin header (DC 3.7–5V) — use a standard Android phone data cable for convenient power.
• DIY-Friendly Pin Headers: 2.54mm pitch pins can be soldered directly onto your own circuit board for seamless integration.
• High-Fidelity Audio Circuit: Resistance-capacitance isolation ensures clean, noise-free output with excellent sound quality.
• MP3 Lossless Decoding: Supports wireless USB flash drive, memory card playback, and button-controlled track navigation.
• Universal Compatibility: Works with Android and Apple (iOS) devices. No built-in amplifier — compatible with any external amplifier size.
• Status Indicator Pin: Includes 1 state pin for advanced/professional use and integration monitoring.

Technical Specifications

What's in the Box

• 1 × Bluetooth Audio Receiver Board (with case)

Note: No retail box. Packed safely in a bubble bag for transit protection.

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For general guidance on wireless audio standards and Bluetooth technology, visit the NIST Communications Technology Laboratory – Wireless Networks.

Learn more: RF module

Frequently Asked Questions

Q: What devices is this Bluetooth audio receiver board compatible with?

A: This Bluetooth audio receiver board is compatible with Android and Apple (iOS) smartphones and tablets. It supports Bluetooth 4.1 and earlier versions, enabling wireless audio streaming from most modern mobile devices. On the output side, it works with any external amplifier, home audio system, or car audio setup that accepts a stereo audio input.

Q: Do I need an amplifier to use this board?

A: Yes — this board does not include a built-in amplifier. It outputs a line-level stereo audio signal, so you will need to connect it to an external amplifier or powered speaker system to hear audio. There is no limitation on the size or type of external amplifier you can use.

Q: How do I power this Bluetooth receiver module?

A: The board can be powered in two ways: via a standard Micro USB port (using a regular Android-style data/charge cable) or through the 2.54mm pin header with a DC 3.7–5V supply. This makes it easy to power from a USB wall adapter, power bank, or directly from your existing circuit board.

Q: Can I embed this module into my own DIY audio project?

A: Absolutely. The ultra-compact size (3.3 × 3.5 × 1.1 cm) and 2.54mm pitch pin headers are specifically designed for DIY embedding and soldering onto custom circuit boards. The high-fidelity output circuit with RC isolation ensures clean, noise-free audio in any custom build.