Features:High-end optical engine, precise positioning.7 buttons, including scroll wheel, left button, right button, advance, retreat, DPI switcher, fire key.Adjustable 1200 / 1600 / 2400 / 3200DPI/5500DPI.Ergonomical design, comfortable touch, long-term use without fatigue.Intelligent connectivity, plug and play.Long switch life up to10 million.Total 7 bright colors showing in turns, giving you a colorful visual effect.Suitable for high-end players, gaming professional players.Specifications:Color: BlackMaterial: ABSTracking system: OpticalVoltage rating / electric current: DC 5V / 100mAConnection: WiredCable length: Approx. 150cmPort: USB 2.0DPI: 1200/1600/2400/3200/5500DPISwitch Life: 10 million cycleButtons: left, right, scroll wheel, DPI, fire key, advance, retreatLight effect: colorfulSupport System: Windows 7/8/2000/XP/Vista Mac OS or latestItem size: 13 * 8.5 * 4cm Item weight: 137g Package size: 13.5 * 11.2 * 5cm Package weight: 167g Package List:1 * Optical Wired Gaming Mouse1* The white box Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.