Durable Stereo Headphones for Personal Audio Entertainment/ Computer Gaming The unique USB or battery powered bass-vibration unit senses low sound frequencies enhances them with a vibrator built into the ear cups. The adjustable headband and microphone boom allow the user to adjust the headset to fit comfortably. The bass vibration headset also with and in-line volume control for convenient adjustments without having to reach for the source. The adjustable headband and soft cushioned ear pads make this headphone so comfortable; you can listen to your favorite music for hours. 100% quality guarantee, 1 year warranty.