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

From the shop's description

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 Connect a 3.7V–5V power source to the module. Wait for the blue LED and the pairing voice prompt. Open the Bluetooth settings on your smartphone. Search for a device named XY_BT . Select XY_BT to start pairing. 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.