Specifications ·Ergonomic Keyboard ·Keys:104 Quiet Click ·Interface: USB Connection: 2.4G Wireless Connection Receiver type: USB Nano Receiver Working distance: 10 meters from the receiver without obstruction Power: One AA battery for keyboard (Not include) One AA battery for mouse (Not include) FN Combination Keys Function FN+F1= Music FN +F2 = Volume- FN + F3 = Volume + FN+F4= Mute FN+F5= Previous Track FN +F6 = Next Track FN+F7= Play/Pause FN+F8 = Stop FN + F9 = Home Page FN+F10 = Mail FN +F11 = My Computer FN + F12 = Calculator FN+W= MAC FN+Q=WI