I never imagined the mouse due to it's unusual designs bought ... well so much you can not say to this mouse ... you have only the USB receiver to connect to the computer, and it does not matter if they run under Windows or Mac is, and now it works. it has a scroll wheel and three buttons. But unfortunately can be the side button for thumb operate very bad, because it is much too far forward and is, in any case never used with me. so I prefer in the evaluation from a star. otherwise it looks well made and a practical pocket for the mouse is also included.