2.4GHz Wireless 800/1200DPI Optical Mouse with USB Receiver - Blue + Silver (2 x AAA)
Color: Blue + silver - 2.4 GHz radio frequency wireless link - 800/1200 dpi resolution adjustable - Compact Nano USB receiver can be hidden and stored inside the mouse - Wireless range: 10 meters - Plug & play Auto-link - Powered by 2 x AAA battery (Not included) - OS supported: Windows 98/2000/XP/Vista