Features: 1.Maximum speed:20km/h on ground, or 5km/h 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