Basic information Brand:Flytec br Color:Black ,red and blue br Max speed:1-2.5kmh Power System Motor:double motor,130A br Transmitter Frequency: 27MHZ40MHZ br Channel: 4CH br Control distance:about 80-300m Battery Battery: 3.7V 5200mAh Lipo(included) br Charging time:about 3-4hours br Using time:about 2-20hours br Other Material:plastic+stainless steel+electric component br Load capacity:about 750-1200g Dimension Boat Size: 43*13.