What he said ^ but you'll have to uninstall/reinstall. its a wonderfully simple tool

I've tried the logitech USB 40 (very poor sound quality and very uncomfortable) and the Sennheiser PC155 USB and i must say for comfort, sound quality and versatility the PC155s get my vote. The sound quality and sound stage in COD is just amazing, my kill rate has gone up 30% My clan...