... 3V4,Rated current:15MmA5,Stochastic Systems:2.4G6,Resolution:800CPI/1600CPI Product features:2.4GHz digital wireless transmission,operation ... distance is up to 10 metersBuilt-in Mouse ... one AA alkaline battery is up to 6 monthsintelligent connectivity, no need to code, plug and playErgonomically designed,comfort gripMany ...