Bluetooth 5.0 USB Adapter Bluetooth 5.0 for Faster, Further Coverage- Transfer data up to twice as fast as before, and with 4X the range in BLE Wireless Connection, free of limitation – Enables wireless communication with Bluetooth-enabled devices Full Compatibility – Backward compatible with Bluetooth2.1/3.x/4.x Power Saving for Devices – Bluetooth Low Energy technology for energy-saving wireless connectivity Ultra-small Design – Highly portable and easy to use.