Low Latency High Fidelity Bluetooth Adapter V5.3 Bluetooth Compatible 5.3 Plug and Play Clear sound quality, no noise Low latency without stuttering Strong and stable signal Support a variety of terminal devices Use mobile phones, tablets, and notebooks to wirelessly connect audio/amplifier/car Wired speaker Bluetooth playback allows ordinary speakers to upgrade Bluetooth speakers using adapters to receive high-definition without lag Support all kinds of old-fashioned speakers with USB input, active speakers old fashioned power amplifier bluetooth playback The old-fashioned power amplifier can be plugged into the USB port to play high-quality music on the mobile phone. Aside from the shackles of cables, listening to music is more free Support car audio and hands-free calling Connect the bluetooth receiver to the car's USB interface, and you can talk and listen to music through the bluetooth connection Product Name: USB Bluetooth Compatible Receiver BT version: BT 5.3 Transmission distance: 10 meters Scope of application: speaker/amplifier/car Voice call: support include:1pcs usb bluetooth compatible receiver