Bluetooth 5.0 USB adapter enables fast wireless connectivity to your desktop or laptop for connecting a wide range of devices such as smartphones, printers, speakers, headsets, keyboards, mice, and more Bluetooth Low Energy (BLE) technology provides energy-saving connectivity without using any cords or wires User-friendly adapter is fully backwards-compatible with Bluetooth 4.x, 3.x, and 2.1 supported devices Ultra-small design fits into your pocket or bag and offers ultimate portability no matter where you go