... Jack 4.Dual speaker 5.32 wireless games 7 inch tft headrest monitor with usb sdModel No.: S-HD718Optioanl functions: ... Automatically selects PAL/ATSC/ATSC MH system Technical parameters. 7-inch TFT LED screen . Aspect ratio: 16:9 wide screen ... 6 poles for different size (12, 12.5, 12.7, 13.8, 14, 16mm) to meet different cars.. ... 46*31CM; G.W: 21kgs; V.W: 24kgs. 7 inch tft headrest monitor with usb sd