The Velineon® VXL-3s forward/reverse electronic speed control simplifies brushless technology with easy, built-in profiles. It sets up, operates, and programs just like the Traxxas XL-5™ family of ESCs so there's no tricky new procedures to learn. Traxxas' exclusive patented Training Mode™ is also included to limit full throttle to 50% for young or inexperienced drivers. For the most advanced users, the VXL-3s is equipped with two-stage low voltage detection to allow LiPo battery use, including powerful 11.1-volt 3S packs! The VXL-3s is manufactured by Traxxas to ensure the highest level of quality and support and is backed by the Traxxas Lifetime Electronics Warranty.