headrest car dvd player

source from http://www.cardvdonline.com

Active Headrest DVD Player HD 3G Dual Channel AUX in for Honda
9" Active Headrest Monitor With speakers,IR, HDMI,Touch screen,Innolux Digital Panel
1)Model No.:HR9917TP-BG(Active headrest monitor with touch screen )
2)A grade new innolux digital panel
3)High resolution:800(W)X3(RGB)X480(H)
4)With USB/SD/AV IN/ IR/HDMI/TOUCH SCREEN
5)Two way AV input,one way AV from cable,one way AV from front cover
6)With HDMI input
7)With AUX in(can display video/audio from another DVD,camera,games,mobile phone,iPhone,iPad,ect)
8)With IR transmitter (Dual channel)
9)Keep original car headrest, no need to take out original car pillow
What is active headrest DVD?

If the headrests on your seats look like they're made by two joint pieces, they're most likely active headrests. Although some of the active headrests are in 'one-piece-design', they still have the 'active' feature.
An active head restraint (or headrest) moves forward and upward in a rear-end collision to decrease the space between the restraint and the occupant's head, reducing the degree to which the head accelerates before making contact. The less acceleration, the lower the chance of injury.