... ergonomic design reduces wrist strain for comfort. 3D Navigation, convenient to browse.Operating rate 5V, 100mAClient color, logo, packing etc ... life:3,000,000 Scanning Speed:1500-3000/secondStyle3D, Computer Interface:USB,PS/2Hand OrientationBoth Hands Cable:1.25/1.35 ... /1.5mColor:Up to you Packing:Standard carton boxMini Oder:1000pcs ApplicationDesktop, LaptopProduction ...