Description
The VHM-314 Pro Bluetooth 5.0 MP3 Decoder Board is a versatile, compact audio receiver module with added features like a microphone input, designed for upgrading existing audio systems to wireless Bluetooth 5.0 connectivity and supporting hands-free calls.
Description
The VHM-314 Pro Bluetooth 5.0 MP3 Decoder Board offers a simple yet powerful solution for transforming wired audio systems into modern, wireless setups. This “Pro” or “Deluxe” version differentiates itself from the standard model by including a built-in microphone and sometimes onboard control buttons, enabling hands-free calling functionality in applications like car audio systems. Utilizing the latest Bluetooth 5.0 technology, this module ensures a stable connection, faster transmission speeds, and high-fidelity, lossless audio reception (supporting formats like WAV, APE, FLAC, and MP3).
This board acts primarily as an audio receiver and decoder; it does not include an integrated power amplifier, meaning it must be connected to an external amplifier or active speakers for sound output. Its compact size and simple 3-wire connection (Power+, Power-, and Audio Out) make it perfect for discreet installations in car stereos, home theater systems, or custom-built speakers. The board operates on a flexible power input range of 3.7V to 5V DC, suitable for standard USB power supplies (via Micro USB or Type-C port) or portable battery setups.
Features
- Advanced Bluetooth 5.0: Ensures a stable connection, faster pairing, and high-quality, low-latency audio transmission.
- Hands-Free Calling: Integrated microphone allows for speakerphone functionality, a key feature of the Pro version.
- Lossless Audio Decoding: Supports high-fidelity audio formats including WAV, APE, FLAC, and MP3 for pristine sound quality.
- Versatile Power Input: Flexible DC power input range (3.7V to 5V) via solder pads, Micro USB, or Type-C port, for use with various power sources.
- Dual Output Interfaces: Features a standard 3.5mm stereo audio jack and dedicated 3-pin output pads for flexible connectivity.
- Compact & Lightweight: Ultra-small form factor designed for easy integration into existing enclosures or tight spaces.
- High Signal Quality: Boasts an impressive Signal-to-Noise Ratio (SNR) of 90dB and low Total Harmonic Distortion plus Noise (THD+N) of -70dB for clear audio.
- Automatic Reconnection: Features an automatic reconnection function for a hassle-free audio experience.







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