... Touch screen, Operation system: Android 4.0, Buit-in Memory:4G, DDR3 512M, CPU Model:ARM Cortex A13 , Main Frequency:2300 ... Touch screen, Operation system: Android 4.0, Buit-in Memory:4G, DDR3 512M, CPU Model:ARM Cortex A13 , Main Frequency: ... 3000MHz, With 3.7V/3200mAh lithium battery, Support MINI SD and TF ... in front, Screen resolution:800*480 . tablet pc