MK802IV: Rockchip 3188 Quad core, 28nm, 1.8GHz Cortex-A9. * MK802IV: Android4.1(will update to Android4.2 with Miracast); Build in Bluetooth. * MK802IV: Memory: 8GB (System divided the whole storage into seven partition, only two partition visible, the other five partition has been occupied by Android system which is invisible. The balance space is equal to the sum of two partitions.) * Mini Keyboard: Built-in high sensitive smart touchpad. * Mini Keyboard: Build-in removable rechargeable Li-ion battery that has longer standby time.