2.4 GHz Bluetooth Data link Functions: 1. Provides communications between the Ground end and the Air end using the DJI bidirectional data communication modules; the iPad Ground Station communicates with the Ground end using the BTU module; 2. Use the 2.4G Bluetooth Data link Assistant Software to upgrade the firmware of the 2.4G Bluetooth Data link and the BTU module; 3.Provides bidirectional communications with large dataflow within the specified distance of the remote control. iPad Ground Station Functions 1. Friendly interface design; 2. Joystick control on touch screen; 3. Single waypoint function, click desired point and go; 4. Waypoints function, edit a routine and go; 5. Editable Home point & auto Go Home supported; 6. Auto landing function supported; 7. Flight simulator supported; 8. Customized joystick mode supported; 9. Routes save and reload supported; 10.Chinese and English UI supported; 11.Voice guidance function; 12.Uses the Bluetooth 4.0 low-power consumption technology; Flight control systems supported： 2.4G Bluetooth Data link: ACE ONE, WKM, NAZA-M, NAZA-M V2; iPad Ground Station: WKM, NAZA-M, NAZA-M V2; Note: All the firmware of the flight control systems should be upgraded to the latest version. The firmware of NAZA-M and NAZA-M V2 should be upgraded to version 4.00.