... 15mA ,1.5V USB:ver.2.0 2.4G Hz Wireless mouseProduct features:1)2.4GHz digital wireless transmission,operation distance is ... up to 10m.2)Built-in mouse memory, ... replacement.3)5-section design,the service life is 2 AAA alkaline battery is up to six months.4 ... hoppingRated operation current:15mA @1.5VUSB:ver.2.0