Bluetooth Audio Receiver Board BT 5.0 Stereo Amplifier - Compact DIY

In this review of the MakerHawk Bluetooth Audio Receiver Board, the bottom line is simple: this tiny BT 5.0 module is best for hobbyists and DIY audio projects who want long-range wireless input and lossless decoding in a compact package. The board delivers clear stereo output and support for WAV, APE, FLAC and MP3 formats while offering flexible power options, so it is most useful when integrated into car audio retrofits, bookshelf speaker conversions, or custom desktop rigs where space and low voltage supply are constraints.

Key Features

• Bluetooth 5.0 decoding: Provides reliable wireless pairing and backward compatibility with older Bluetooth devices for broad device support.
• Lossless audio formats: Decodes WAV, APE and FLAC files for better fidelity compared with simple compressed-only receivers.
• Stereo output: Delivers two-channel audio suitable for connecting to a small amplifier or active speakers for clean playback.
• Flexible power options: Can run from a 3.7-5V battery or from USB power and supports discharge when used with a battery.
• 15 m transmission range: Offers long-distance operation in an unobstructed environment, useful for multi-room setups.
• Auto-reconnect behavior: Restores the previous playback state automatically if USB power is briefly interrupted.

Who It's For

The MakerHawk board suits makers, electronics hobbyists, and installers who want a compact Bluetooth front end that supports lossless decoding and can be embedded in small enclosures or car projects. It is particularly useful when stereo output and long transmission range are required without adding a larger amplifier board.

Those who need a finished commercial-grade product with built-in controls, on-board volume knobs, or charging capability should look elsewhere; this module is intended as a component for DIY builds and does not include a charging function for batteries.

Pros & Cons

Pros

• Small 30 x 30 mm footprint makes it easy to hide inside speaker cabinets or dash panels.
• Good build quality and reliable connectivity, with positive reports of multi-room reach.
• Supports lossless formats and stereo output for better-than-basic audio quality.
• Flexible power: USB or battery operation with an automatic reconnect feature.

Cons

• Some users report slightly reduced maximum volume compared with other receivers, which may require an external amplifier for louder playback.
• Voice prompts can be intrusive for users sensitive to audible pairing messages.

Specifications

Colour	Black
Size	30 x 30 mm
Power supply	3.7 - 5 V (USB or battery)
Decoding format	WAV, APE, FLAC, MP3
Transmission distance	15 m (barrier-free)
SNR	90 dB
THD+N	-70 dB

Our Verdict

The MakerHawk BT 5.0 receiver board is a pragmatic choice for DIYers who need compact wireless input and support for lossless audio formats. It offers solid connectivity, a useful transmission range, and flexible powering at a modest price, though installers should pair it with an external amplifier if louder output is required.

Frequently Asked Questions

Can this board be powered from USB?
Yes. The board can run from a USB power source and will auto-reconnect after a brief USB disconnect.

Does it support lossless audio files?
Yes. The board decodes WAV, APE and FLAC as well as MP3 for stereo playback.

Is this module suitable for car speaker installations?
Yes. It runs at 3.7-5V and is commonly used in car audio DIY projects, though you may want an external amplifier for higher volume.