[PERFECT CAR TRAVEL COMPANION]:The dual channel wireless IR headphone set work with any car DVD universal frequency (channel A: L/2.3MHZ, R/2.8MHZ; channel B: L/3.2MHZ, R/3.8MHZ).To see if your car is compatible, check out the Model Compatibility Chart! | [AUTOMATIC SHUT OFF]:Just load two AAA batteries(not included)into the infrared wireless headphones, select the matching channel, and you can enjoy music, movies immediately.Automatic shut off prevents batteries from draining when left on to ensure maximum battery life. | [BUILT FOR COMFORTABILITY]: The soft earmuff of wireless IR headphones,ensuring lasting comfort. They are foldable and stretchable, which allows you to find the perfect fit without constraint and excellent durability. | [MULTIPLE USE]:IR car headphones can be used wirelessly by connecting the car DVD infrared frequency.Or allows plug in use on any Ipad/Pod, MP3 devices that uses a 3.5mm auxiliary cord (included),No batterries required when used with auxiliary cord. | [PACKAGE INCLUDES]:2 x wireless car DVD headphones,2 x 3.5mm audio cable,2 x storage bag.By choosing SAHARIE, You are covered with 12 Months warranty and 100% Customer satisfaction.