Wireless audio adapter for speakers with USB connectivity1、Stable Transmission: Bluetooth 5.1 chip, with fast transmission speed, stable transmission conditions for multi device connection. 2、Application: This adapter is essential for establishing wireless links between your computer and other Bluetooth devices, such as keyboards, mouse, headphones, speakers, printers, cameras, tablets and phones. 3、Function: Plug in this Bluetooth adapter to give ordinary computers Bluetooth capability, so that the computer and other Bluetooth enabled devices, such as cell phones, Bluetooth headphones to transfer audio and data. 4、Operating Range: With a transmission distance of 10‑20 meters, you can enjoy lossless music through your Bluetooth headset without hovering around your computer. 5、Strong Compatibility: Support system for Windows 7, 8, 8.1, 10. USB2.0 interface, compact size and easy to carry, whether you are traveling or at home.