The first mouse's cable died after a few of months, the second had double clicks, and the third had a defective sensor that was spinning forever; how MB could have missed these problems is beyond me. All these mice have a sensor like a mouse, and you can get one for just 100r with a friend by playing an hour of RezR or SteelSaers; the difference will be obvious to you, MB. Those mice don't even bother me, and I'm a loser like that.