Remote Controller. Features: Use the Remote Controller to control the aircraft and the gimbal wirelessly. Linking is required when using the Remote Controller for the first time. An onboard LCD screen keeps you updated on aircraft data. Mount your mobile device in the adjustable handles. Both Master and Slave remote controllers can control the aircraft and gimbal, but the master remote controller has priority. A more experienced pilot can use the Master remote controller to override a less experienced pilot for better safety. Dual Remote Controller Mode makes it fun and easy to fly the Mavic and film aerial footage collaboratively. Operating Frequency: 2.4GHz to 2.483GHz. Max Transmission Distance: FCC: 7km, CE: 4km. Compatibility: Mavic Pro.