... WIFI, 3G,GPS,Camera -Advertising Headrest Mount Tablet PC , Android Terminal for Car ,Bus, Taxi -Android 4.0 OS, support ... USB interface, directly connected USB devices -Built-in headrest for Car/Taxi/Bus with adjustable pillar -Ebook reader function with ... installed in different places (Car/Taxi/Bus) -More customization possibilities (Storage/Battery/Car headrest/Functions)-Embedded design with simple ...