Thanks to UB4A, the PC or laptop can be equipped with ABluetooth functions. Simply plug in and use. With a transmission distance of up to 20 meters, you can stream lossless music over your Bluetooth headphones. The UB4A USB adapter fits into any USB port, making it ideal for travelers, students and adventurers, so it's easy for anyone on the move. No driver configuration is required for Win 8, Win 8.1, and Win 10. By plugging in the Nano USB adapter, the Bluetooth function is automatically activated.