I bought it only because of the luminous look and the promoted brand, for the first time I come across a mouse of such terrible quality, After buying a month later, the mouse wheel began to "scroll", this shows very low quality, some mice take years to reach such a state, this mouse was enough less than a month. The mouse glowed in different colors at the same time at the beginning of the purchase, and after a month it began to give out different colors, on each bulb inside. A couple of years ago there was an Oklick keyboard, the same "defective" one on which some keys stopped working at all, the quality is worse than Chinese.