I am looking for headrest dvd for car. I need two for kids. What I care most is the screen. A bad screen maybe harmful to kids' eyes. Has anyone installed that kind of car dvd? Need you advice about the headrest dvd I plan to buy. 7 inch Digital Car Headrest DVD Player with USB/SD/GAME/IR/FM transmitter from www.justcardvd.com 7 inch TFT LCD 16:9,Resolution800*RGB*480,Digital panel Sony lens,Sunplus chip,mabuchi motor Built-in FM Transmitter Function and Dual IR transmitter,Built-in Speakers,Built-in 32 Bits Games Function Compatible with MP4,DVD,VCD,SVCD,CD,CD-G,MP3,JPED,WMA,CD-R,CD-RW,and DVCD formats. Is that OK for kids