It looks good, promises loads of functions, but the lack of an external power outlet, whilst reducing the cables is actually this units downfall. The unit's receiver attaches to the PC by a single USB but this obviously only draws power when the PC is powered up. So the charger is largely useless and everytime I switch the PC on, I have to go through the rigmarole of having to reconnect the mouse & keyboard. Even then, the keyboard functions are a bit hit and miss. The manual comes in English & German but only covers the basics. The keyboard has an extra 31 buttons and 2 wheels. The mouse has 10 buttons, but the manual does not adequately explain how to use these functions.