The Joysway RTR Mad Flow is styled after a tunnel-hull F1 Boat. With a top speed of 55 km/h+ and intelligent hull design, this durable speed boat will automatically flip right side up and drain the water from the rear of the hull if you roll during high speed racing. Complete with a powerful water cooled D2842 Outrunner brushless motor, 30A water cooled brushless ESC, 9g rudder servo and 2.4Ghz transmitter the Mad Flow is sure to be hit at your favourite patch of water. Just about everything you need to get this rocket-ship into the water is included in the box. The supplied JC293 2.4 Ghz radio system offers rock solid control with the ability to run with other boats operating on the same spectrum without interference. The Mad Flow is powered by a supplied 11.1V 2200 mAh Li-Po battery and includes an Australian mains power wall charger. The only extra items required are 4 x AA Dry Cell batteries for the transmitter. Specifications: - Hull Material: ABS Plastic - Length: 590mm - Beam: 230mm - Servos: 1 x 9g (included) - Radio System: 2 Channel 2.4GHz (Included) - Electric Motor: D2842 Outrunner Brushless (Included) - ESC: 30A Water Cooled Brushless w/BEC (Included) - LiPo Battery: 11.1V 2200mAh 35C (included) - Australian Mains Charger: 2-3S Balance Type (included) - Plastic stand