This is the USED Traxxas XL 2.5 Electronic Speed Control, with Low Voltage Detection. Designed and engineered by Traxxas, the XL-2.5 Brushed Electronic Speed Control provides smooth throttle control with 380-size and smaller mini-motors and is completely waterproof for all-weather R/C driving fun. This high-performance ESC is packed with impressive specifications and features that are normally only found on expensive high-end replacement units. The XL-2.5 features three throttle profiles, Thermal Shutdown Protection, 6-8 cell NiMH and 2S LiPo compatibility, and built-in BEC. High-frequency operation combined with ultra-low resistance make the XL-2.5 an efficient and ultra-smooth fully proportional speed control. The XL-2.5 is manufactured by Traxxas to ensure the highest level of quality and support and is backed by the Traxxas Lifetime Electronics Warranty. Traxxas High-Current Connector The XL-2.5 ESC is equipped with the Traxxas high-current connectors for restriction-free current flow. Patent-Pending Training Mode™ An exclusive feature that places the XL-2.5 ahead of the pack is the patent pending Training Mode. This feature reduces the overall power output of the XL-2.5 by 50% making it easier for new drivers to control their model. When they’re ready, simply change profiles to unleash full-throttle action. Only Traxxas has it! XL-2.5 Waterproof ESC Features: Innovative waterproof design 10-turn motor limit for 380 size motors Fully-proportional forward, reverse, and braking control Programmable with three drive profiles: Sport Mode – Fwd / Brake / Rev Race Mode – Fwd / Brake Training Mode – 50% Fwd / Brake / 50% Rev EZ-Set® push-button setup Multi-color LED Thermal shutdown protection Efficient, low-loss MOSFET design High-capacity heat sink Smooth, high-frequency operation Easy installation in Traxxas models Backed by the Traxxas Lifetime Electronics warranty XL-2.5 WATERPROOF ESC SPECIFICATIONS: Input Voltage: 4-8 cells NiMH; 2S LiPo Case Size: 26.5mm W x 46.5mm D x 22mm H Weight: 33 Grams Motor Limit: 10-turns (380 size) On Resistance (@Trans): 0.008 Ohms Reverse Delay: None BEC Voltage: 6.0V DC Power Wire: 16 Gauge / 40mm Input Harness Wire: 26 Gauge / 130mm Motor Wires: 26 Gauge / 130mm Transistor Type: MOSFET PWM Frequency: 2300 Hz Thermal Protection: Thermal shutdown Profile selection: Sport Mode: 100% FWD, 100% brakes, 100% REV Race Mode: 100% FWD, 100% brakes, No REV Training Mode: 50% FWD, 100% brakes, 50% REV Single-button setup: Yes, Traxxas EZ-Set®