Recently, I got a new Benz B200. I plan to install two headrest car dvd for it. Before that, I've installed two headrest car dvd for my ford. I find this 7 inch Digital Car Headrest DVD Player with USB/SD/GAME/IR/FM transmitter. Needing your advice that whether should I buy. http://www.justcardvd.com/products/7-inch-Digital-Car-Headrest-DVD-Player-with-USB%7B47%7DSD%7B47%7DGAME%7B47%7DIR%7B47%7DFM-transmitter.html 7 inch TFT LCD 16:9,Resolution800*480,Digital panel Sony lens,Sunplus chip,mabuchi motor SD/MS/MMC ports and USB ports Built-in FM Transmitter Function and Dual IR transmitter.Built-in Speakers Compatible with MP4,DVD,VCD,SVCD,CD,CD-G,MP3,JPED,WMA,CD-R,CD-RW,and DVCD formats.