U4C: OS: Android 4.2; Built-in Camera + Mic + Bluetooth * U4C: RK3188 integrated quad-core ARM Cortex-A9 CPU. * U4C: Enhanced WIFI antenna. HD Camera * F10 Flying squirrel collection of "air mouse + wireless mouse and keyboard + remote control" three functions in one. * F10 Can remote control the screen by key pressing and moving the fly mouse to surf the web,watch movie...