Replaces a Razer which my hamster eats the cable ... I wanted a mouse not too expensive, and I'm surprised. It is shorter than the Razer and perfectly fits in the palm of the hand. She has a good round, it comes to hand. Previous my mouse was a little long and not pleasant to hold. Its optics is surprising, it is faster than the Razer set to 600 dps. It should rotate between 600 and 800 dpi. She slips on a rug without make noise. Two shoes at the top and bottom of the mouse, and seem quite mild with Teflon, but verify.
For the price, the quality of its optics and precision Razer also those of its predecessor, which was worth 5 to 6 times.