Introduction The Spektrum Firma Sensored Smart ESC System is specifically engineered to be used with 10th scale Crawlers and Scalers. Featuring advanced Smart connectivity, professional Drag Brake Performance and torque control, all while being fully waterproof. Features Smart all-in-one telemetry Pro-level Performance Sensored Motor and ESC Fast, powerful 32-bit ARM M4 processor Multiple options for easy programming: Smart ESC Programming Box (V2 version required) SmartLink USB Updating and Programmer application Programming from Transmitter via Text Gen Telemetry Multi-point protection: Over-current protection Automatic LiPo low-voltage cutoff Thermal protection Failsafe protection Developed and designed by Spektrum engineers, in partnership with the industry's leading ESC manufacturer Compact for easy installation in most applications Ready to install no soldering required Waterproof System Waterproof sensor wire with locking plug and gasket Aluminum heat sink for high efficiency Includes Optional Cooling fan Adjustable high-power BEC (6V or 7.4V) Firmware updatable through the Smart ESC Programming Box (V2 version required) High heat-resistant IC connectors, backwards compatible with EC connectors Limited 1-year warranty Overview The Spektrum Firma Sensored ESC System is a Combo that includes a Sensored 2100kv Motor and the Firma 60 Amp Sensored ESC, providing a perfect upgrade for 10th Scale Rock Crawlers and Scalers