Koramzi IR900 IR Infrared Wireless Foldable Headphones with AUX Input Designed for in-Car TV, DVD, Video Listening, with auto Shut Off Function(Works only with IR and AUX Cable- Not for Home use) Wireless IR headphones let you enjoy your entertainment without a mess of cables Automatic level control prevents signal from overloading Adjustable Straps For Maximum Comfort Headphones fold flat for easy storage, with auto shut off function Single channel Infrared Wireless Headphones Frequency: Rightchannel:2.8MHz Left channel: 2.3MHz With Swivel Ear Pads and AUX input