Bluetooth 5.0 adapter: Strong compatibility, TV, computer, headphones, mouse and keyboard universal, suitable audio and video, car and office and other scenarios. Bluetooth 5.0 + : More compatible, more stable signal transmission, 10 -free transmission. Transmission and reception two in one: One adapter dual mode, while meeting the transmitting and receiving functions. Free Drive: Plug and play, free drive installation, fast pairing, convenient to use. Colour: Black : ABS Package Contents: 1 * Bluetooth receiver 1 * Audio cable Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.