This Slash VXL is hard-loaded for ultimate performance and realism with the Traxxas On-Board Audio, new Traxxas Stability Management (TSM) and a low center gravity chassis. Traxxas On-Board Audio delivers the full short course experience with the powerful and loud sound of a 900 horsepower engine ripping through the gears. While TSM and the Low CG chassis combine for a whole new level of speed and precision. Traxxas Stability Management automatically adjusts the vehicles direction and power to maintain vehicle control for maximum speed and braking in all terrain types. The included 3-channel TQ 2.4GHz transmitter is equipped with a rocker switch that enhances the On-Board Audio by allowing the model to be placed in “neutral”, so the engine can be revved. After 10-seconds of no throttle input, the engine shuts down. When it’s time to start the engine, just tap the throttle to feel and hear the surge of horsepower as the engine starts. Traxxas Slash VXL trucks feature watertight sealed electronics, integrated servo savers, brushless power systems, and adjustable slipper clutches.