VHM-314 Bluetooth 5.0 MP3 Lossless Audio Decoding Board DIY
VHM-314 Bluetooth 5.0 MP3 Lossless Audio Decoding Board DIY
VHM-314 Bluetooth 5.0 Wireless MP3 Lossless Audio Decoding Board
Upgrade your DIY audio projects with the VHM-314 Bluetooth 5.0 Music Decoding Board — a compact, versatile PCB module that streams lossless audio wirelessly to speakers, amplifiers, or headphones. Whether you're building a custom home audio system, modifying your vehicle's sound setup, or prototyping a personal electronics project, this tiny board delivers big performance in a 3×3 cm footprint.
Key Features
- Bluetooth 5.0 — upgraded wireless connectivity with backward compatibility to versions 4.2 and 4.1
- Lossless Audio Decoding — supports WAV, APE, FLAC, and MP3 formats for true high-fidelity playback
- Auto Reconnect — automatically re-pairs with your last connected device on power-up
- Stereo Output — standard 3.5mm audio jack compatible with headphones, power amplifiers, and other audio equipment
- LED Status Indicator — solid blue light confirms active Bluetooth connection at a glance
- Wide Power Range — operates on 3.7V–5V, ideal for battery-powered and USB-powered builds
- Wireless Range — reliable connection up to 15m (49ft) line-of-sight
- Micro-USB & Type-C Interface — flexible input options (Type-C optional)
- Compact & Lightweight — approximately 3×3cm (1.2×1.2 inch), easy to integrate into any build
Technical Specifications
| Bluetooth Version | V5.0 (backward compatible with 4.2, 4.1) |
| Power Supply | 3.7V – 5V |
| Signal-to-Noise Ratio (SNR) | 90dB |
| Total Harmonic Distortion (THD+N) | -70dB |
| Crosstalk | -86dB |
| Dynamic Range (DNR) | 91dB |
| Supported Profiles | A2DP / AVCTP / AVDTP / AVRCP / HFP |
| Wireless Range | >15m / 49ft |
| Audio Interface | Standard 3.5mm stereo jack |
| Board Size | Approx. 3×3cm / 1.2×1.2 inch |
| Material | Printed Circuit Board (PCB) |
Ideal Applications
- DIY home audio and speaker builds
- Vehicle audio system modification
- Personal Bluetooth electronics projects
- Prototype and maker builds
What's in the Box
- 1× VHM-314 Bluetooth 5.0 MP3 Lossless Decoding Board
Made in Mainland China.
Looking for more tools and DIY project essentials? Check out our 1/2" Drive 8-Piece Hex Short Socket Set – Vanadium Steel or explore our 10-Piece Gardening Tool Kit – Iron Head & Plastic Handle for your next hands-on project.
Learn more: EPA guidance on lithium-ion battery handling
Frequently Asked Questions
Q: What audio formats does the VHM-314 Bluetooth decoding board support?
A: The VHM-314 decoding board supports lossless and compressed audio formats including WAV, APE, FLAC, and MP3, making it suitable for high-fidelity audio streaming in DIY audio builds.
Q: What power supply does this Bluetooth audio decoding board require?
A: This board operates on a wide input voltage range of 3.7V to 5V, making it compatible with LiPo batteries, USB power banks, and standard 5V USB power supplies — perfect for both portable and fixed DIY installations.
Q: Is the VHM-314 compatible with older Bluetooth devices?
A: Yes. While the board uses Bluetooth 5.0, it is backward compatible with Bluetooth 4.2 and 4.1 devices, so it will work with most modern smartphones, tablets, and audio sources.
Q: Can I connect headphones directly to this board?
A: Absolutely. The board features a standard 3.5mm stereo audio jack that accepts headphones, earbuds, powered speakers, or a power amplifier for flexible audio output in any DIY setup.
Production & Packaging Notice
To maintain high stock availability and fast shipping times, our items are sourced from multiple verified manufacturing facilities. While the core quality, materials, and product specifications remain identical, you may notice slight variations in the packaging design, manufacturing origin, or the wording of the printed instructions.