RoGer Bluetooth 5.1 USB Adapter

Chip: 5.0 REALTEK RTL8671BBluetooth Version: BluetoothV5.1/V5.0/V4.0+EDR V2.1/2.0/3.0Interface: USB 2.0Frequency Range: 2.400-2.480GHzTransfer Rate: 3MbpsDistance: 0-20MOS Supported: Windows 7/ 8/ 10/11 etc.Not support Mac OS,Linux systemItem Size: 21x16x5 mm