MuxikaAdjustable 1600DPI 2.4G Optical Wireless Mouse Mice For Laptop PC Switchable DPI among 800/1000/1200/1600. Wireless Technology: 2.4GHz Wireless transmission, the longest sensing distance up to 10-15 meters Compatible with Windows ME/2000/XP/Vista/Win 7/Win 8/MAC OS or Higher Size:100mmX55mmX30mm(L/W/H)