Car headrest tablet pc 7 inch touch screen with 90 degrees swivel Leather pillow 3G,WiFi,Lan for internet Vibration test 7 Inch ... to hang the tablet on the back of your original car seat. Download infinite application software from google market, play games, watch ... Flash: 4GB Network Ability: WiFi,LAN,3G (Internal) 7 Inch Car Headrest Tablet PC with 3G, WiFi, Lan