computer accessory for 3d optical mouse 1.800dpi,new chip high ... .High resolution: 800DPI 3.best price Mouse DiscriptionWelcome your inquiryPromotion computer accessory for 3d optical mouse FeaturesModel Numbertdh20 IC:8732 , 2700 ... -press life:3,000,000 Scanning Speed:1500-3000/secondStyle3D, Computer Interface:USB,PS/2Hand OrientationBoth Hands Cable:1.4mColor:Up ...