KB: super slim keycap, 11 hotkeys & Volume Knob,    5D programmable optical mouse (800cpi),

Keyboard         
 424x195x19.5mm 
Mouse              
 132 x 68 x 38 mm  
Reciever  81x89x74.3mm 
526x200x83mm
 2xAAA Alkaline (keyboard) 
2xAAA Nimh (mouse)