Saitek PH04AU GH30 Vibration Headset Great for Internet gaming, voice chat, online conferencing, or voice command, Cushioned headband for total comfort Closed leatherette ear cushions cut external sound and increase bass , Extra long, low distortion shielded cable, For maximum sound quality and crystal clear voice transmission Works with any voice communication or voice recognition software , Volume and vibration control Vibration effects powered by USB or 2 AAA batteries Adjustable microphone for clear voice commands in internet gaming, speech recognition and voice chat. Powerful, amplified vibration and deep bass effect.