Description: Developing in high performance for playing games,Providing all your need of gaming basic functions.Included ultra-fast response buttons, special Lightweight metal add in middle of mouse body.Tracking and slide control with excellent performance,Built-weight iron, feel comfortable, mobile and stability.Ergonomic: left and right symmetrical design,it is an essential equipment for Gamers.Multi-speed DPI adjusted freely,500-4000Compatible with Windows XP, Vista, Windows 7, ME,2000 and Mac OS. Specification: Mouse size: 130 * 70 * 40mmInterface: with magnetic ring USB interfaceDPI switching: 500-4000DPI free adjustmentNumber of keys: 10 keys to customizeLight effect features: four-color glare (red,green,blue,white)/ brightness adjustable / can be closedRate of return: 125-1000MHzKey life: 15 million timesWorking rate: 3000 frames / sec Package Includes: 1xGaming Mouse1x User Manual