... for 3d optical mouse 1.800dpi,new chip high quality 2.1 year warranty 3.style : compter accessory 1.1computer ... for 3d optical mouse specification1.usb interface,plug and play 2.High resolution: 800DPI 3.best price Mouse DiscriptionWelcome your inquiryPromotion ... ,000,000 Scanning Speed:1500-3000/secondStyle3D, Computer Interface:USB,PS/2Hand OrientationBoth Hands Cable:1.4mColor:Up to you Packing ...