Turtle Beach Ear Force PX21 is a universal gaming headset compatible with PS3, XBOX 360, and PC/Mac. It enhances gaming experiences with superior stereo sound and clear communication. Variable Bass Boost adds depth to audio, while Dynamic Chat Boost automatically increases chat volume as game volume rises. The in-line amplifier offers quick access to audio controls, including chat and game volume. The microphone monitor lets you hear your voice while talking, and the stereo expander widens the sound field for greater directional perception.