Features: Built-in A5050 game chip, especially designed for games, and it is easy to meet the needs of the current mainstream games. 4 modes of adjustable DPI which can be adjusted by the button in the top to help find the precise position. 3 modes of return rate which can be adjusted by the button in the bottom to help avoid dropping frames. 4 colors adjustable backlight effect(red, blue, purple and green) and LED logo light effect, very fashionable. The material of the mouse's surface is skin-friendly, very comfortable to use under your palm, and the mouse's roller is made of rubber material. The USB weaving wire is with anti-interference magnetic ring, which will ensure controlling the game smoothly to provide you a stable gaming environment. It can directly to plug and play. Suitable for playing game, using on office and at home. System requirement: for Windows 98/2000/ME/NT/XP/Win 7/Win 8, etc.