Because of its shortcomings, the whole point of the mouse falls away. I do not recommend buying it, its glitches and freezes will infuriate you :) Has pros: The number of buttons is their separate setting, macros, and a good cord, in fact, that's all. The backlight is not critical for me, but for whom it is an important factor, it shimmers smoothly and there are enough settings for its overflow, blinking, etc. Cons below: The mouse sometimes freezes, does not respond to any pressing, some of the side buttons are poorly pressed, they also do not always work out.