... , Buit-in Memory:4G, DDR3 512M, CPU Model:ARM Cortex A13 , Main Frequency:2300 7" Touch screen, Operation system: Android 4 ... , Buit-in Memory:4G, DDR3 512M, CPU Model:ARM Cortex A13 , Main Frequency:3000MHz, With 3.7V/3200mAh lithium battery, Support ...