I purchased these specifically for playing MMO games online with my friends. So far they have "just worked" with both windows XP/Vista and my Mac OSX machines. The sound quality is decent for games and general voice communication. Sound effects are good and crisp, bass sounds bassy (but not incredibly so) and I've had them on my head for spans as long as four hours and didn't suffer any listening fatigue or discomfort. Light and soft without being flimsy. I even listen to music on occasion, but they aren't exactly a $400 pair of Sennheisers, but they don't claim to be either. The volume control/mute switch on the cable is nice and works well.Everything just works, and is still working. I'd definitely buy another pair if these died at this point.