A good little mouse bought for my father but he is too small (it has big hands ... lol ...). I resumed my wife and my daughters 9 and 5 years old easily use with their smaller hands (me too but still you have to have the habit of its small size, hence the star less) . Otherwise it is precise on virtually any media. Missing only two buttons on the sides to make PT. It is recognized without any problems (windows 7 for me, the small USB key is plugged, it turns the PC and put the small switch on "ON" under the mouse and voila).