The USB Bluetooth 5.0 audio transmitter is mainly suitable for the audio transmission of Windows 7/8/10/XP 32/64bit/Linux/iOS and other devices Support audio connection of computer and Bluetooth headsets, Bluetooth speakers(not support to connect to devices such as smartphones/Bluetooth keyboard, mouse, etc.) Support wireless listening to music, voice calls(need to connect a Bluetooth headset with a microphone), WeChat calls, video conferences, webcasts and so on Stable and smooth connection, the Internet voice calls will not break up No need to install drivers, plug and play After the device is successfully matched for the first time, it will automatically connect after the startup Small size, easy to carry and use Specification: Bluetooth version: 5.0 Transmission distance: 10 meters Scope of application: for Windows/for Mac/for Linux Size: 23*16*7.4mm