Here is a small comment on the razer mouse to left: Finally a manufacturer who thinks we southpaw gamers (! GG what), fps player for a long time, I despaired of possessing such a mouse, well done here, speed, accuracy and ease of use are at the rendezvous, a pleasant feeling of already seen (on the feelings of touch, so this mouse fits well in the palm of the hand.) in short a good choice for those (and yes have not forgotten you ladies players) who wish to finally have a mouse adapted to their "handicap .... lol"