Slash’s Low-CG chassis positions the battery and electronics as low as possible. This dramatically increases corner speed and stability. On the racecourse, Slash 4X4's low-CG allows high-output Velineon brushless power to be channeled into the track with superior traction and faster lap times. Off the track, Slash’s ultra-smooth chassis reduces drag and prevents snags on underbrush. New Traxxas Stability Management (TSM) allows you to experience all the extreme power that was engineered into the Slash 4X4 by making it easier to control on slippery surfaces. The new On-Board Audio System uses sounds sampled from Traxxas team trucks. The system has adjustable volume and won’t compromise your run time. The intuitive sounds respond to throttle input from the transmitter. The Velineon VXL-3s ESC works with the 3500 motor for extreme power and its brushless design reduces wear and friction. Velineon accepts standard 7-cell NiMH batteries up to 3s 11.1V LiPos with its integrated low-voltage protection (batteries and charger sold separately). Waterproof electronics allow Slash the freedom to drive through water, mud and snow. The TQi 2.4GHz transmitter is fully adjustable and can be equipped with a Bluetooth module that turns your Android, iPad iPhone or iPod touch (sold separately) into a powerful tuning tool. Slash 4X4’s highly efficient drivetrain spins effortlessly with an aluminum driveshaft and rubber-sealed ball bearings. The Modular design allows you to remove the entire front or rear section with just a few screws for easy maintenance. Slash 4X4's Race Replica bodies are fully decorated with licensed logos and graphics for total authenticity.