1, USB optical mouse 2, 800 DPI 3, With ROHS, CE and FCC certificates 4, Compatible with all Windows System 5, 1.5M distance vertical mouse 1. ABS material.2. Switch life :3,000,000 times3. 800DPI High resolution 4. All kinds of colors or rubber coating colors available5. Working distance:1.5M6. Compatible with windows 2000/XP/9X/ME/NT4.0,/vista /7, and MAC7. Unit size:106*58*36mm vertical mouse