Tp-link’s ub400 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. 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.