Description: Cool simulation scale F1 speed boat, 45km/h high speed, brushless motor power, built-in water cooling system, ensure speedboat more smooth sailing in water. 2.4G , full scale sensitive steering gear, self-righting design keeps your boat in the correct direction when it capsizes. Low voltage protection, when the voltage is too low, the remote control will and prompt the speedboat to return in time. Waterproof design of fully sealed silicone rubber rings improve resistance and the waterproof ability, better protects the boat engine. Good for pools and lakes with care in outdoor/indoor, kids and adults. Specification: Material:Electric Component Remote Control Frequency: 2.4G Remote Control Batteries: 1.5AA *4(Not included) Boat Battery: 11.1V 1200MAH 20C(Included) Charging Time: 200mins Play time: Remote Distance: 80-100meters Speed: 45KM/H Motor: 2848 KV1900 Brushless Steering Servo:3kg Functions:forward/backward, ture ,self righting, capsize recovery, low voltage . Size Chart: 43x17x12cm /16.93x6.69x4.72inch Package Includes: 1 Piece F1 Speedboat 1 Piece Remote Controller 1 Piece USB Cable 1 Piece User Manual 1 Piece Propeller 1 Piece Battery Cover 1 Piece 11.1V 1200MAH Battery 1 Piece Prop Nut 1 Piece 1.5mm Wrench 1 Piece 2.5mm Wrench Note: Put the boat onto the water before turn on the controller.