Traxxas 6407 1/7 X0-1 100+MPH 4WD Ready-to-Run Supercar (Colors may vary) Castle Mamba Monster Extreme Speed Control with Traxxas Big Block Brushless Motor TQi 2.4GHz Radio System with Docking Base Integrated speed, RPM, and voltage Telemetry System (with docked i-Device) Patent-pending cush drive Factory Equipped with Traxxas Power Cell 3S 5000mAh LiPo batteries