The New ESC features a newBluetooth communication protocolfor quick setup of parameters, firmware upgrades since we recently developed Reds iOS and Android App. After downloading Reds App and connecting Reds ESC with Reds Bluetooth module, you can control your ESC (Throttle, Power, Voltage, Current, Temperature, RPM, Timing) in real time through the mobile app to know the running status; The history of the running status can also be viewed by data logging.