... Rated operation current:15mA ,1.5V USB:ver.2.0 2.4g wireless optical mouse driverProduct features:1)2.4GHz digital wireless transmission,operation distance is ... life is 2 AAA alkaline battery is up to six months.4)Intelligent connectivity,no need to code,plug and play. ... 5)Ergonomically designed,comfort grip.6)Many dormant class control and more power-saving hibernation connectionless.7)800 dpi-1600dpi, ...