Features:Professional high-precision optical tracing engine precise positioning.Resolution reaches up to 3200DPI.Adjustable resolution features among 800 / 1200 / 1600 / 3200 DPI.7 buttons including scroll wheel fire key 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 cableTracking systems: OpticalMax DPI: 3200DPISupported system: Windows 98 / XP / Vista / 7 / 8LED light colors: 7Cable length:135cm / 53inItem size: 13 *; 8 *; 4 cm / 5.1 *; 3.1 *; 1.6in 'L *; W *; H'Item weight: 131g / 4.62ozPackage size: 14 *; 10 *; 5cm / 5.51 *; 3.93 *; 1.96in 'L *; W *; H'Package weight: 160g /5.64oz