This is the Spektrum RCFirma 70A Smart Waterproof Brushed ESC and 15T Brushed Motor Combo. This combo is an excellent option for most 1/10 RC vehicles giving you a great solution to get up and running. Designed as a waterproof ready to use 1/10 scale brushed ESC, the Firma 70 amp is an excellent option for everything from on-road and off-road racers, scalers, crawlers, bashers and is matched perfectly with the Spektrum 15T 3-pole brushed motor. This Firma Smart ESC is packed with features such as Spektrum RC's SMART technology. SMART provides a one-wire solution for obtaining telemetry data such as temperature, battery voltage and capacity. Additionally the Firma 70 offers a plethora of programmable tuning options giving you the utmost control over any application.