VHM-314 Bluetooth 4.1 Audio Receiver Module with Micro USB

Description

VHM-314 Bluetooth Audio Receiver Module The VHM-314 Bluetooth Audio Receiver lets you stream music wirelessly from a smartphone, tablet, or other Bluetooth device. It provides clear stereo audio through a standard 3.5mm output jack. Power the module through its Micro USB port or the external 3.7V–5V input pads. Its compact size makes it suitable for speaker upgrades, amplifier projects, and portable audio systems. Key Features Bluetooth 4.1 wireless audio reception Standard 3.5mm stereo audio output Micro USB 5V power input External 3.7V–5V power input pads Supports direct power from a suitable lithium battery Bluetooth status LED Wireless range of more than 15m in open areas Compact design for DIY audio projects Technical Specifications Model: VHM-314 Bluetooth Version: Bluetooth 4.1 Operating Voltage: 3.7V–5V DC Micro USB Input: 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 Interfaces Micro USB Port: Connect a standard 5V USB power supply. Power Pads: Connect an external regulated 3.7V–5V supply. 3.5mm Audio Jack: Connect headphones, active speakers, or an external amplifier. LED Indicator: Shows the current Bluetooth connection status. Pairing Instructions Connect a suitable 3.7V–5V power source. Wait for the blue LED and pairing voice prompt. Open the Bluetooth settings on your phone. Search for the device named XY_BT . Select XY_BT to complete the connection. Play music after the successful connection prompt. Applications Use this module for: Converting wired speakers to Bluetooth DIY Bluetooth speakers Home audio systems Car audio projects Portable sound systems Amplifier and electronics projects Package Contents 1 × VHM-314 Bluetooth Audio Receiver Module Important Notes This module provides an audio signal output and is not a speaker power amplifier. Use an external amplifier when connecting passive speakers. Keep the supply voltage within the specified 3.7V–5V range. Wireless range may decrease because of walls, interference, or nearby devices.

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