A mouse 17 of this poor quality is theft! She would not even 5 It is 100% made in china, poor quality plastic, two buttons and not four as in the photo, in short we feel that the quality control to the output of the plant was on vacation. We were lucky, they could forget to put the wheel! But it is not even an error Amazon because the Mobility Lab fabulous site, they present the same pictures. If we wanted to find him an advantage is its small size Less than 11cm long 3cm high, it can easily slip into your travel bag, however in terms of its quality I do not know if she would survive. Forget the mouse and turn you toward REAL manufacturers.