1.2.4Ghz wireless mouse and keyboard combo 2.Mini receiver 2.4G Technical SPEC. 1.RF-2402MHz-2480MHz 2.RF operation channel-16,automatic ... wireless transmission,operation distance is up to 8-10 meters.2.built-in mouse memory,no recoding is needed after battery ... to six months 4.Intelligent connectivity,no need to code,plug-and-play.5.Ergonomically designed,comfort grip. 6.Dormant class control ...