... Supported (82 key) Hot Keys4x Hotkey, rotate display,3G RF on/off, Bluetooth on/off, Touchpad ... Fn+F3Mute Fn+F4TouchPAD ON/OF Fn+F5Dual display Fn+F6LCD brightness Down Fn+F7LCD brightness ... ion) , 4000mAh ,7.4V Battery Remainder Power Display when shut down When shutdown and no AC insert, ... -HD Facial recognition Facial recognition to logging in windows, detect leave to lock the system,Single Sign ...