TP-Link Bluetooth 4.0 Nano USB Adapter is a sleek, ultra-small design means you can insert the Nano adapter into any USB port and simply keep it there, no matter when you are travelling or at home. With a transmission distance of up to 10 m, you can enjoy lossless music via your Bluetooth headset without hovering around your computer. UB400 turns Non-Bluetooth PC or laptop into Bluetooth-capable. Just connect your Bluetooth devices to your computer and enjoy it with ease. For Win 8, Win 8.1 and Win 10, just plug UB400 into your computer to enjoy a fast, convenient Bluetooth connection.