>>24905331
You can pair a bluetooth audio device with it and for the PC it pretends to be an USB sound card. So the PC never knows a bluetooth device is connected. It also supports better proprietary bluetooth audio standard then a PC would, so you get lower latency.
>>24905507
be sure the Bluetooth of pc and earphones are 'hearing'
then search the device in the list or click the pop-up as it is in your pc and 'pair' them by clicking
also
>YouTube tutorial