Baseus Wireless Adapter BA04 Black 5.0 Bluetooth 5.0 standard . High performance data transfer and stable connection between devices. Range up to 20 m. Using devices that are several meters away. High sound quality . Listening to music on wireless headphones without interference. Backward Compatibility . The adapter connects to devices that use older versions of Bluetooth. Easy Plug&Play installation. No driver installation required.   Brand: Baseus Model: BA04 Connector type: USB Bluetooth standard: 5.0 Chip: BR8651 Supported protocols: A2DP, H2DP, HSP, AVRCP, HID and others