To use headphones for the Xbox 360, turn the headset volume all the way down, and plug the headset into the port on your controller. Put the headset on, and use the volume control knob to adjust the sound.Continue Reading
Rotate the volume control to the left to turn the volume all the way down on the headset.
Plug the headphones into the expansion port located on the bottom of your controller.
Put on your headset, and slowly move the volume control knob to the right to adjust the volume.