Features: 1,Maximum speed:20kmh on ground or 5kmh above water surface 2,Can run on water and land 3,Battery:one remote controller 006P(9.6V) ;One battery pack(9V Ni-Cd) ;One special charger 4,Operating frequency:27Mhz,49Mhz,40Mhz 5,Charging time:3-4 hours 6,Operating distance outdoor 60m Indoor distance:40m China supplier: Email : fangzhengcn@hotmail.