Traxxas Summit 1/10 Scale 4WD Electric Extreme Terrain Monster Truck with, Black Waterproof 16.8V EVX-2 ESC includes low-voltage detection and powers the Titan 775 motor, the largest motor in its class Transmitter-operated remote locking differentials and high/low transmission gears Advanced TQi 2.4GHz transmitter and receiver with model memory for fine tuning your Traxxas machines Includes two Traxxas 7-cell NiMH batteries with iD technology and 4 amp 12-volt DC peak-detecting fast charger for reliable charging Geode rims and Canyon AT tires with dual-CV telescoping half shafts and specially-tuned long-travel suspension This is an O.E.M. part