I just purchased it because of how bright it appeared and the brand that was being pushed; this is the very first time that I have come across a mouse that is of such poor quality. After purchasing it a month later, the mouse wheel started to "scroll," which is an indication of very poor quality. While other mice take years to get to such a state, this mouse got there in a little under a month. After one month of ownership, the mouse started emitting lights of a variety of colors, one for each of the bulbs contained within it. When it was first purchased, the mouse glowed in a variety of colors all at once. A few of years ago, there was an Oklick keyboard that was the same "defective" one on which some keys ceased operating at all; the quality is lower than that of Chinese keyboards.