Introducing SpektrumRC Smart Electronic Speed Controls. Power and Intelligence All-In-One! Our new Firma™ surface and Avian™ air electronic speed controls join the Smart system. They not only deliver power but also eliminate the hassles from running telemetry. The days of installing and connecting multiple wires, sensors, modules and links are over. The Smart ESC gathers and transmits intelligence from other components, sending the data in real-time so you can see information like battery voltag