SIMOLIO Wireless IR Car Headphones with 3 Levels Volume Limiting, 3 Packs (SM-562 Series)

SIMOLIO replacement headphones for car DVD work well with any universal-frequency car DVD (Universal IR frequencies: Channel A: L/2.3MHZ,R/2.8MHZ; Channel B: L/3.2MHZ,R/3.8MHZ). For non-universal DVDs, compatibility issues may occur, like no sound, single–side sound, or audio cuts in and out. Please use 2×AAA premium alkaline batteries, set the volume on your DVD player to a sufficient level and make sure the channel of headphones is same as the relative DVD's. 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. 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