Traxxas Summit: 1/10 Scale 4WD Electric Extreme Terrain Monster Truck with TQi 2.4GHz Radio, Black Waterproof 16.8V EVX-2 ESC includes low-voltage detection and powers the Titan 775 motor, the largest motor in its class Integrated dual battery accept a variety of NiMH and LiPo configurations to unlock Summit's power potential Transmitter-operated remote locking differentials and high/low transmission gears 4-channel TQi 2.4GHz transmitter and 5-channel receiver with model memory for fine tuning your Traxxas machines Geode rims and Canyon AT tires with dual-CV telescoping half shafts and specially-tuned long-travel suspension