XO Vision IR620 Universal IR Infrared Wireless Foldable Headphones for In-Car TV, DVD, Video Listening Extra foam cushioning gives you superior comfort making them ideal to wear over long periods Auto Shut-Off saves battery by automatically shutting down when not in use Touch On/Off Switch and Volume Control conveniently located on side of headphone One size fits all - easily adjusts to fit any size head Universal design compatible with OEM and aftermarket in-car DVD systems