Description: 520 dpi, 30% faster than most others 5-button (left + right + 2-side + wheel button) + 2-wheel No tracking ball to clean Precision optical sensor Advanced design with 5 programmable buttons Works on most surface Valued iWheelWorks program included Zoom in/out and auto-scroll in Office 97/2000 Windows 95/98/Me/NT/2000 multilingual driver included Product Link: Mouse AOpen Optical |