What kind of headphones? If it's like little ear buds in your tv, then un-mute the tv. If you bought a gaming headset ranging from the crappy $20 Microsoft headset to the expensive turtle beaches or Tritons, or whatever, there is a turner thing in the wires or on the headset itself. If that doesn't work, look through the guide menu and experiment. It would be a preference thing if I remember correctly. Hope this helped.