Xbox 360 Controller 3.5mm Headset Mic Adapter360-hma
This adapter allows you to connect any earphone and microphone to your controller, converting the 2.5mm plug to 3.5mm one.
You can talk to your online opponents in the other room or on the other side of the world. Simply just plug into your controller expansion port and then plug in any headset into the earphone.
1 x 3.5mm Headset Mic Adapter for Xbox 360 Controller