Here are some potential steps you can follow to troubleshoot your USB headset:

1. Check your headset’s cable connections. Also try switching the USB port the headset is plugged into and check if that helps.
2. Reboot your computer. Make sure that all the drivers for your headset are up-to-date.
3. Make sure that your headphones are selected as the input and output audio device in the Sound settings of your computer.
4. If your headset has an external power supply (e.g. powered USB hub), try using a different power source (e.g. AC adapter)
5. Try using the headset on a different device.