1. Promote the on-line community experience of the X-box Live of the unprecedented in history,let you draw up the strategy with member of team,the interference opponent or while play favorite game with friend chat.2. You can make serve to record for friend or family and stay the speech message through the free X-box Live letter,can also replace telephone and good friend contact. 3. Open loudly or adjust the small voice,make experience personally the most vigorous game career to make possible.