Android OS 10.1 Inch Taxi Interactive Touch Screen Advertising System

10.1 Inch Taxi Advertising Headrest Touch Screen With GPS, 3G, WIFI, Advertising Software 1) Built in headrest which is univeral to all cars, pillar distance adjustable from 10cm to 20cm 2) Auto power on when car engine is on 3) Built-in WIFI 4) Built in RTC to keep system time 5) Built in Bluetooth 6) USB port support mobile phone charging 7) Support online software upgrading via WIFI or 3G 8) APK application can be widely installed, with great compatibility 9) Headrest