Did I bought this mouse to my notebook. It is very small - just micro and no mini. Nevertheless and grade so I'm absolutely thrilled. For me (small person and little hands) it is optimal. For people with larger hands I could imagine problems. The key pressure points are surprisingly good. The processing is very solid. And the best: it works so far anywhere. In other mice, one often has the problem that you need depending on the surface and / or the color / pattern a backing - not here. It also sets movements to very accurately. This works also very well with the retractable cord. And as the Vorrezensent has noticed it is also recognized under Windows 7. The coronation: in all this it is beautiful and because of the small size really "cute". When I worked with her and use the PC right after my normal PC mouse, it seems to me as if I had I now a corporal under his hand. They like it so much that I still will bring in silver / black for the PC me. And maybe even one for my pocket, I would take if I set up on other people's PCs / Notebooks something. In any case: strong buy recommendation, with the limitation "for rather small hands".
--- Addendum March 2012: I have these mice (yes, now there are several) for a year now in use. In particular, every day intensive use on the PC. And I can only say: I'm still satisfied residue-free. No failures, no "hakeln", no peeling paint. TOP precisely.