UB4A Bluetooth 4.0 Nano USB Adapter UB4A turns Non-Bluetooth PC or laptop into Bluetooth-capable. Just connect your Bluetooth devices to your computer and enjoy it with ease. It supports 7 Bluetooth devices at most. With a transmission distance of up to 20 m, you can enjoy lossless music via your Bluetooth headset without hovering around your computer. The data of distance applies in an environment with few shelters. 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 traveling or at home. For Win 8, Win 8.1, and Win 10, just plug UB4A into your computer to enjoy a fast, convenient Bluetooth connection.Please note this item is non-returnable, see our returns policy for more information.