Instructions
Turn on your console.
Plug your headset into your Xbox 360's controller. The port is positioned below the "Guide" button, between where your palms rest.
Place the headset on your head and position the microphone near your mouth.
Adjust the volume output of the headset's earphone by scrolling the volume knob on the headset's wire.
Mute your voice by pressing the "Mute" button on the headset.