Gaming Mouse with adjustable DPI 400/800/1600/3200 for PC,4-Button Optical, Nylon Cord USB Cable,Black &hellip; Ergonomic design, fits naturally in your hand.Smooth, precise and affordable optical 4 button for laptop, desktop and netbook PCs Hyper-fast scrolling lets you fly through long documents and Web pages DPI button to select your preferred cursor speed:400/800/1600/3200dpi Red LED and nylon cord USB cable make you more fashionable Works with Windows 2000, XP, Vista, 7, 8, and 10