RC Missile Warship Radio Remote Control HT-2877 RTR Ship Battleship Cruiser Factory assembled and painted, Ready to Run, Color may vary Speed: 5-10 mph, Aerodynamic ABS plastic body, Glossy exterior paint, Detailed Deck Superstructure Full Function FM Radio Control Boat (forward, left/right turning, backward); Perfect for pools, small ponds, rivers and lakes.1. place boat into water before it can operate. 2. make sure battery is fully charge 3-4hour before using. The humidity will damage the circuit broad and motor. There is a drain plug on the deck . After playing the boat, please unplug the drain plug and turn out the water inside; also please remove the battery, cabin cover, and dry out the water. The instruction is printed on the box. "Touch water to run" safety function. The propellers will run when it touches the water. Also, it could be tested by touch switch on the land . The touch switch can be connected by wet fingers or metal wire as paper clip to test. Its instruction is printed on the box.