Function1. The USB Bluetooth adapter enables the computer to have Bluetooth, realizing wireless transmission and sharing.2. Support for WINDOWS ALLOS LINU system, support for 3rd generation iPhone headphones.3. Achieve higher sensitivity, faster transmission speed and more stable device connection.4. Realize the connection between the computer and other Bluetoothenabled devices.5. Once the device has been successfully paired for the first time, it will automatically connect after subsequent bootup.SpecificationItem type USB Bluetooth adapterMaterial ABSColor As the picture showsWeight Approx. 12.0g0.4ozBluetooth version Bluetooth 5.0Bluetooth chip for BR8041Transmission distance Approximately 10mApplication Support for WINDOWS ALLOS LINU systems, support for 3rd generation iPhone headphones.Function Computer Bluetooth expansionHow to use1. Confirm whether the transmitter you purchased is the call version2. Insert the transmitter into the computers USB port, the red and blue lights will flash alternately3. Turn on the pairing status of the Bluetooth headset speaker4. Wait for the transmitter to automatically pair with the Bluetooth headset and speakers no action is required.5. When pairing is complete, the transmitters red light will always be on6. Some computers need to set the audio output channel, or reconnect it.Package list1USB Bluetooth adapter1Manual