The Ear Force PX21 integrates premium stereo game sound with crystal-clear communication on the PlayStation Network (PSN), XBOX LIVE and PC/Mac to create the definitive audio environment for playing popular game titles on all platforms. The PX21 is two headsets in one, a stereo USB headset for chat sound and an amplified stereo headset for game sound. If you're serious about your PS3, XBOX 360 or PC gaming, then get serious about the sound. Move up to the Ear Force PX21 and become a better player while experiencing your games as they were meant to be heard.