For only $55 you TOO can have a mouse under which is a totally sweet gamepad for use with all your favorite old-timey games. I suppose you could use it for some newer games too, but I think the whole world will agree that clearly the best use is for Dr Mario. This mouse is wireless, optical, has a 2.4GHz transmission band, 7 keys and 1 scroll wheel on the top of the mouse, joypad featuring 14 buttons. Interfacing with the mouse is done via USB 1.1 / Plug & Forget / Intelligent ID Link. It's 1.5V (operational voltage), 30mA (operational current,) and weighs approximately 115g (without the battery).