Instructions
Plug the USB headset into an open USB port on the front of the PlayStation 3. Turn on the console.
Navigate to the settings menu. Select "Accessory Settings," then "Audio Device Settings."
Select the connected USB headset from the "Input Device and Output Device," if not selected automatically.
Put the headset on and speak into the microphone. A graphical representation of your voice is displayed on the screen. This should be green. If audio levels are going into the red, adjust the microphone level to equalize the headset. Save the settings and exit the settings menu to finish configuration.