X-Maxx Toughness. Monster Truck Style.The new X-Monster Chassis combines the legendary power and durability of X-Maxx with even more strength, larger size, and a new series of replica monster truck bodies. New belted chevron-pattern monster truck tyres deliver outstanding traction for jaw-dropping acceleration and 50+ mph speed with the authentic scale looks of a real monster truck. Choose your favorite Ford or Chevy body (sold separately) and unleash 30+ volts of extreme 8s power! What's in the box? X-Monster Chassis with Traxxas Big Block brushless motor VXL-8s waterproof electronic speed control with integrated telemetry Optional high speed pinion gear TQi 2.4 GHz radio system High-quality maintenance tools What Youll Need: BodySelect your X-Monster body from one of several available options. BatteriesX-Monster requires the use of LiPo batteries equipped with Traxxas High Current Connectors. Traxxas 4-Cell, 6700 mAh Power Cell LiPo batteries with iD® are recommended for optimal performance (part 2890X). ChargerEZ Peak Live Dual 4s LiPo Charger with iD® AA Alkaline BatteriesFour AA alkaline batteries for the transmitter.