Bluetooth ConnectivityCompatible with All Fardriver Controllers! Plugs into 4 pin Red Connector on Nanjing Fardriver Controller HarnessesWireless TuningAllows effortless parameter adjustment and performance tuning via a mobile app without cumbersome cables. Broad CompatibilitySpecifically designed for use with Fardriver (ESC) and Nanjing controllers including models like ND72300. Mobile App ControlFeatures an intuitive app interface for programming customizing settings and real-time monitoring of performance. Fast & Stable ConnectivityEquipped with advanced Bluetooth technology offering faster data transfer speeds and a wider signal range for reliable communication. Plug-and-Play SetupSimple to install; just plug the compact durable dongle into the controller's port and connect with the app.