Select the headset as the output
- Connect your headset to your Surface Pro.
- Right-click the speaker icon on the taskbar.
- Open Sound settings.
- Under Output, check which device is selected.
- Select your headset if it appears, then increase the volume.
Also, play some audio and check whether the volume mixer is sending sound to the headset.
If the headset does not appear
- Open Settings → System → Sound → More sound settings.
- Select the Playback tab.
- Right-click in the empty area and enable Show Disabled Devices.
- If your headset appears, right-click it and select Enable, then Set as Default Device.
If it still does not work
- Turn off Audio enhancements for the headset, if available.
- Run the Windows audio troubleshooter through the Get Help app.
- Restart the Surface and test again.