Specification: Item Type: USB Bluetooth Adapter_x000D_Material: ABS Features: 1LONG DISTANCE TRANSMISSION: Computer Bluetooth adapter effective use range is 10?100 meters/10.9?10.9.4yd , compatible with a variety of operating systems, compatible for Windows 11 10 8.1 7. 2BLUETOOTH 5.1: USB Bluetooth adapter adopts Bluetooth 5.1 technology, with better transmission distance and efficiency, lower power consumption and latency. 3EDR TECHNOLOGY: Bluetooth dongle receiver adopts EDR data transmission technology, data transmission rate up to 3Mbps, Class1 power standard. 4TWO WAY: Long range Bluetooth USB adapter allows two way file transfer between your computer and other devices such as cell phones. 5WIRELESS CONNECTIVITY: Bluetooth adapter eliminates wiring problems, reduces energy consumption, saves energy and guards the environment. PackageList: 1 x BluetoothAdapter1 x Antenna1 x EnglishandChineseManuals