Car Bluetooth Adapter Wireless Audio HD Call $ 4.89 Product information: Interface: USB Plug and Play: Plug and Play External Power Supply: no external power supply Transmission Rate: 3(Mbps) Effective working radius: 20(m) Bluetooth standard: 5.0 Color: transparent black Chip: Bluetooth5.0 chip Scope of Application: Notebook/desktop/all-in-one machine Size: Packing list: Bluetooth Adapter*1 Product Image: