Foldable Universal Car Kids headphones: compatible with most car DVD systems. (universal IR frequencies: CH A: L/2.3MHz,R/2.8MHz; CH B: L/3.2MHz,R/3.8MHz). If your DVDs' IR frequencies are non-universal, you will need to buy the original headphones.
Wireless IR Headset: it is not only a perfect traveling companion for a family car trip, but also can be used with IR transmitter (not included) to enjoy late night TV shows without disturbing your family or kids can leave you a peaceful space by using it to watch their favorite cartoons or play games. If your car DVD has not a built-in infrared transmitter or you want to use these IR headphones for TV watching at home, we suggest to buy our Simolio IR Transmitter for better performance.
Over/On Ear Car Headphone with Detachable & Adjustable Headbands: the headphone's sizes are shown as FIG 4. Please measure the sizes of your kids' heads and ears before ordering. For the toddler or someone who feel the headphone is too big, we suggest to use the included detachable & adjustable headbands to fit you better (Ref. FIG 4). Also the headband incorporates memory stainless steel strips inside, you can adjust it's shape or wearing angle to make your kids more comfortable. (Ref. FIG 5).
Two Channel Wireless IR Headphones: for two kids at the same row watching different movies from the headrest DVD players without interference by switching to A/B channel. If you installed a ceiling/roof mounted DVD player for all the people in different rows to watch the same program, we suggest you to choose channel A for both your DVD and headphone which may have better performance than channel B.
Power Saving Vehicle Headphones with Carrying Case for Easy Storage: 2 New AAA batteries (not included) can provide up to 20 hours of continuous working time. Automatic shut off prevents batteries from draining when left on to ensure maximum battery life. 3.5mm Aux jack with Aux cable included, for use with iPad, iPhone and Tablet PC etc.