1. Geographical environment: The altitude is not more than 3500 meters. The battery life of the drone will decrease as the altitude rises. indoor mini drone，Please be sure to conduct a field test before the official performance flight.
2. Ground environment: The ground is hard and flat, the slope is not more than 5%, and there are no weeds, stones and other debris within 1 meter of the aircraft placement position.
3. Magnetic field environment: Keep away from power lines, steel structure buildings, magnet/iron ore and other environments with abnormal magnetic fields. If the magnetic field environment is abnormal, the initial heading angle will be wrong, and the aircraft may "draw a circle" or even collide with other normally flying drones in the formation for a period of time after takeoff.
4. Other objects that may affect the drone: Before takeoff, including the entire flight range after takeoff, it needs to be at least 200 meters away from high-voltage wires, otherwise the strong magnetic field/electric field brought by the high-voltage wires will affect the normal operation of the aircraft. flight.
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