Bornd Windows 8 Mouse W801, Windows 8 Key (Batteries Included) - Rainbow Buttons:4 (left, right, scroll, Win8 metro key) Operation Range: 98feet Resolution:1000-2000DPI Operating Voltage:3V Operating Current:3.8mA Compatibility: Windows98/98SE/2000/XP/ME/VISTA/7/8 2x AA Alkaline Batteries Included