Ouku&reg;4 Pack of Two Channel Folding Rear Music Entertainment System Infrared Headphones Wireless IR Headrest Overhead Roof Mount Monitor DVD Player Head Phones for in Car TV Video Audio Listening 4 Pack of Wireless IR headphones to enjoy in car listening without the hassle of cables Automatic shut off prevents batteries from draining when left on Headphones fold up for easy compact storage 3.5mm Auxilary port. Allows plug in use on any Ipad/Pod, MP3 devices that uses a 3.5mm auxillary cord (cord not included) Two Channel headphones for headrest monitor, roof mounted car dvd players