Yvi Wireless Mini Mouse - black Compact design 2.4GH wireless Optical technology 8 meter wireless range Storable micro USB receiver Rubber sides Sensitivity switch button (800-1600 DPI) Package contents Wireless optical mouse USB micro receiver 1x AAA battery User’s guide System requirements Windows 8, 7, Vista or XP Intel-based Mac with Mac OS X 10.5 (Leopard) or higher USB port