Description: Product Name: Bluetooth-compatible Audio Adapter Product model: C5 Bluetooth-compatible audio receiving and transmitting two-in-one Product color: black Material: ABS Bluetooth-compatible version: 5.1 Power supply interface: USB interface Transmission distance: 10 meters Line length: 1M Battery capacity: no built-in battery, USB powered, plug and play Suitable type: computer, TV, projector (transmitting mode)/car, speaker, earphone (receiving mode) Packing list: Bluetooth-compatible Audio Adapter x 1 Instructions x 1 Note: 1. Due to manual measurement, please allow 1-3cm error. Make sure you don't mind before bidding. 2. Due to the difference of different monitors, the picture may not reflect the actual color of the product. Thanks.