Professional high-precision optical tracing engine， precise positioning.Resolution reaches up to 4000DPI. Adjustable resolution features among 500DPI to 4000DPI.6 buttons， including scroll wheel， left button， right button， advance， retreat， DPI switcher.Total 7 bright colors showing in turns， give you a colorful visual effect.Ergonomic shape， special feel good.Compatible with Windows 98 / XP / Vista / 7 / 8 or latest. Intelligent connectivity， no need to code， plug and play.Suitable for high-end players， gaming professional players. Specifications:Connection way: USB cable Tracking systems: OpticalMax DPI: 4000DPISupported system: Windows 98 / XP / Vista / 7 / 8LED light colors: 7Package List: 1 * Wired gaming mouse