VHM-314 Bluetooth 4.1 Audio Receiver Module with USB-C

VHM-314 USB-C Bluetooth Audio Receiver

The VHM-314 USB-C Bluetooth Audio Receiver lets you stream audio wirelessly from smartphones, tablets, and other Bluetooth devices. Its USB-C port offers a convenient way to power the module from a standard 5V source.

The module delivers stereo audio through a 3.5mm output jack. You can connect it to active speakers, headphones, or an external audio amplifier.

Key Features

• Bluetooth 4.1 wireless audio reception
• Modern USB-C power input
• External 3.7V–5V power pads
• Standard 3.5mm stereo audio output
• Bluetooth connection status LED
• Wireless range above 15m in open areas
• Compact design for embedded audio projects
• Supports several Bluetooth audio profiles

Technical Specifications

• Model: VHM-314
• Bluetooth Version: Bluetooth 4.1
• Operating Voltage: 3.7V–5V DC
• USB-C Input Voltage: 5V DC
• Audio Output: 3.5mm stereo jack
• Signal-to-Noise Ratio: 90dB
• THD+N: -70dB
• Crosstalk: -86dB
• Dynamic Range: 91dB
• Line-of-Sight Range: More than 15m
• Supported Profiles: A2DP, AVCTP, AVDTP, AVRCP and HFP

Module Interfaces

• USB-C Port: Supplies 5V power to the board.
• Power Pads: Accept an external regulated 3.7V–5V supply.
• 3.5mm Jack: Outputs stereo audio to compatible equipment.
• LED Indicator: Displays the Bluetooth connection status.

Pairing Instructions

1. Connect a 3.7V–5V power source to the module.
2. Wait for the blue LED and the pairing voice prompt.
3. Open the Bluetooth settings on your smartphone.
4. Search for a device named XY_BT.
5. Select XY_BT to start pairing.
6. Play your audio after the connection completes.

Applications

The module works well in:

• DIY Bluetooth speakers
• Wireless home audio systems
• Portable speaker projects
• Car audio upgrades
• External amplifier projects
• Old speaker Bluetooth conversions
• Educational electronics projects

Package Contents

• 1 × VHM-314 USB-C Bluetooth Audio Receiver Module

Important Notes

• This board outputs an audio signal but does not amplify passive speakers.
• Add an external amplifier when using passive speakers.
• Keep the input voltage between 3.7V and 5V.
• Walls and wireless interference may reduce the operating range.
• The package does not include a USB-C cable, battery, or amplifier.