Spektrum Smart ESC Programming Update Box: Avian and Firma, SPMXCA200 Unlock more power and performance from your SMART capable ESC. Product FeaturesUpdated V2 versionReview, adjust and save Spektrum Smart ESC parametersConnect (via USB) to a PC to update Smart ESC firmware and adjust parameters via Spektrum SmartLink PC appCheck a LiPo battery's cell balanceNeeded for programing and updating the Spektrum Sensored Crawler ESC (SPMXSE1060) Product OverviewSet, review, adjust and save the operating parameters of your Avian and Firma electronic speed controls using the Spektrum Smart ESC Programmer. When connected to a PC using the included USB cable, the programmer will update Smart ESC firmware and can adjust parameters through the Spektrum SmartLink app. You can also use it to check the balance of your LiPo battery cells.