Four Pack of Two Channel Fold Flat Adjustable Child-Adult Size Universal Rear Entertainment System Infrared Headphones With Four Additional 48" 3.5mm Auxiliary Cords Wireless IR 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 3.5mm Auxilary port. Allows plug in use on any Ipad/Pod, MP3 devices that uses a 3.5mm auxillary cord (4 cords included) Automatic shut off prevents batteries from draining when left on Headphones fold flat for easy compact storage and Adjust to fit Children and Adults Two Channel headphones.