Traxxas E-Maxx: 1/10 Scale Electric 4WD Monster Truck with TQi 2.4 GHz Radio & TSM, Red Monstrous 16.8 Volts of waterproof EVX-2 power and dual high-torque Titan motors conquer the toughest off-road terrain with speeds up to 30mph! Configurable battery compartments easily accommodate many optional NiMH and LiPo batteries Advanced TQi 2.4GHz transmitter and receiver with model memory for fine tuning your Traxxas machines and TSM stability control Durable transmission with protective skid plate, sealed pivot ball suspension and differentials, dual servos, and Low-CG chassis design 3.8" mirror chrome Twin-Spoke wheels with tough 3.8" Maxx mud-slinging chevron tires