LEARN MORE  Propeller guards are recommended when using these functions.  Remote controller (optional accessory) required.  Unobstructed, free of interference, with remote controller when FCC compliant.  Estimated flight time is based on flying in windless conditions at a constant speed of 12.4 mph (20 kph). Actual flight times may vary depending on your environment.  Remote controller required; DJI Goggles compatibility coming soon.