Product Description High-quality speaker drivers. Large 50mm Neodymium magnet speaker drivers give you crystal clear and robust sound. Microphone optional. With the clip-on microphone, you decide whether you want to game in peace or communicate directly with your friends. Light-weight design. So light-weight and comfortable that you might not even notice you’re wearing them. In-line control box. Adjust your volume or mute either the audio or microphone easily with the headphone control box. Virtual 7.1 surround sound. The included USB soundcard offers you the ability to game in 7.1 virtual surround sound. Also compatible with other headphones to turn them into surround sound headphones too.