Foldable Universal Car IR 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, e.g., Chrysler Pacifica 2017/2018, you will need to buy the original headphones or close your DVD’s IR function, and purchase SIMOLIO IR transmitter instead.
Two Channel Wireless Kids Headphones with 3 levels (94dB, 85dB, 75dB) of Volume Limited Function: designed with a VOLUME LIMITTER SWITCH to limit the output volume at the desired sound level for the Kids. For two kids at the same row watching different movies from the headrest DVD players without interference by switching to A/B channel.
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