Remote Control Boats Upgradedremote Control ToysWater Cooling High Speed Boat| Electric Boat| Model Boatspeed Rboat Description: Size: 46x12.5x11.8CM Package Size:49.2x18.1x19.9CM Frequency: 2.4G Channal:4CH Voltage:7.4V Color: Green Material:ABS,Electronic Battery For Transmitter: 6x1.5V" AA battery(not included) Battery For Boat: 7.4V 1500mAh Li battery Operation distance: about 100 to 150 meters Running speed: about 30kmh Charging Time: about 1 hours. Serviceable time: about 5 to 6 minutes Function: go forward,backward,turn left and right,with righting function Protection function:Overcharge/Over discharge Features: 1.New high speed RC boat, speed up to 30km per hour 2.High quality guarantees its stable performance 3.New design idea, novel appearance and exquisite workman 4.Built-in water cooling system, safe and reliable 5.4G frequency technology can make it feature high capacity of resisting disturbance 6.Various functions like go forward / backward, turn left and right, with righting function, can be easily controlled 7.Professional high capacity chargeable battery and quick battery charger 8.Protection for overcharge and over discharge, pretty safe for use