Quick view Add to Cart Spektrum Firma 40A Brushed Smart 2-in-1 Brushed ESC and Receiver SPMXSE1040RX $108.60 inc GST Upgrade your brushed motor equipped models to Spektrum™ Smart Technology with the Firma™ Smart 40 Amp Brushed ESC. Get valuable battery and ESC telemetry data easily and in real time right on your Smart-compatible Spektrum transmitter —... Compare