Basically, this mechanics is the drone's landing gear. When on the ground, the arms pivot down, allowing it to touch down with the camera staying above ground l

Basically, this mechanics is the drone's landing gear. When on the ground, the arms pivot down, allowing it to touch down with the camera staying above ground level, protected from impacts. When airborne, the arms pivot up, opening up a 360° field of view for the camera. DJI have done this since the original Inspire 1 and it seems to work pretty well.