For having the 3 and 7 wired, I can say that this Mous9 has the same characteristics as 7, with of course differences, related to wireless and lack of weight adjustment with metal masses (location the battery on this model).
This mouse is lovely in red and black, a real sports car.
Unpacking is laborious and start up a little fuss, but it's do you like red Prancing Horse car, it is deserved.
At ergonomics, it's more comfortable, I like the thumb rests of Mad Catz and the palm rests, which is adjustable in length via a small lever on the right and can therefore be dropped.
It is equipped with 7 more precision button buttons, nothing new compared to the wired model, the mouse can work as with default settings and will be recognized by Windows 8 directly.
To fully configure, you will download the application and drivers on the website of Mad Catz. You will also find the "Profiles" settings for the type of targeted games.
The laser device is very effective and the mouse works anywhere without worry.
The connection is made Blutooth or your PC is recent and has BT 4.0 (earlier mobiles so) and in this case the pairing can be done directly, or it is not and it will then connect the supplied dongle into a USB port.
Under W8, it is recognized directly.
I have not felt really important latency, but it remains the radio, not wired.
For battery life, long ago that I do makes me more illusion about it, I use rechargeable batteries and I recharging them very often to maintain a high voltage.
Conclusion.
Already, one can not remain indifferent to this machine on a desk, it throws, especially red.
Functionally, there is no big negative comments, it works.
Now for the game, I remain fond of the wire on response time, even if it is possible to play without big problem.
Nevertheless, I find the price a little high, the wireless techno probably, but at this price, I think the RAT 7 wired with weight settings is more effective.