Joysway Offshore Infinity ARR (Almost Ready to Run) Self Righting Brushless RC Boat. Light Weight Durable Fiberglass Hull. High Quality. Easy to Use. Brought to you by Atomik RC your one stop online RC Shop. Motor Type: 2850KV Water Cooled Brushless. ESC: 60 Amp Water Cooled Brushless. Max Speed: 40+ MPH. Batteries: Required: 3S 2200mAh 11.1v LiPO – Not Included. Charger: Requires: 2-3 Cell Balance Charger – Not Included. Radio: 2.4Ghz 2 Channel. Servos: 9 Gram Metal Gear. Fuel Source: Electric. Length: 610mm / 24in. Width/Diameter: 165 mm / 6.5 in.