If you don't hear sound from your device, continue with the next steps.
Press the button for seven seconds if the computer is the second Bluetooth device you're pairing to your device.Press the button for two seconds if the computer is the first Bluetooth device you're pairing to your device. If you have a Stream Deck then all you need is one button to be able to switch from your headphones to your speakers and vice versa.
In the pop up that shows your current active audio device and volume bar, click on the name of the audio device. On your desktop screen, left-click on the speaker icon on your notification bar at the bottom right side of the desktop screen.