1/36 R/C ALANTIC TUGBOATFull-Function AM Digital Proportional Radio System Electronic Speed Controller Length 560mm / Width 195mm / Height 285mm Scale 1:36120m/400ft Range Up to 20 Minutes Endurance High scale finish & detailing 7.2v 800mah Ni-Cd battery & AC Charger included Requires 8x AA Batteries (not included) Changeable crystal function