User conquered by Mad Catz RATZ 5 & 7 it is with curiosity and desire that I turned to MOUS9, the promise of even more thrills in gaming cable to the leg, or rather with the mouse. The product is splendid. Lacquered black this mouse is really beautiful and very impressive. His cabinet is superb and it comes with a small bag, Mad Catz imagining into a mobile gaming mouse I guess. But it is a good idea, even if this case would have benefited from a bit wider, there is hardly time for each slide inside. A first disappointment, the mouse is not "lestable" and no fleet is provided, only the AA battery weighs slightly overall, but for me, alas, it is a little too light. This is totally subjective and I like very heavy mouse, I think they earn much precision. Second disappointment, the mouse is not very ergonomically adjustable. Thus, only the mouse is adaptable length, not its height nor the fins on each side, Razer offers much better in terms of ergonomics and its mouse settings. Third disappointment, Bluetooth pairing, I got to pair with any of my machines. The mouse is seen, I run ... and then pairing the two machines fail to come closer. Yet they try, it almost reached a split second, then lose again ... Dongle required! With the adapter no connection problem, for it immobilizes against a USB port, it is a pity! In use ergonomics is known, is a Mad Catz and I find the sensations of RATZ: pure happiness. The various buttons fall well under the fingers. I found with pleasure the actions triggered by the various buttons, although by default the proposed actions are not "perfect", the mouse driver installation is used to reset each of the buttons and thus to have a perfect setup . Finally one last disappointment because that tough love, mouse puts a little time to wake up. It is not much, it is even allowing it probably a range of more than a year on a single battery, but it's still annoying this latency in the morning. Finally these critics might seem insurmountable but it is not. I love this mouse and for me it is close to perfection, it is even why I try to nit :)