I think the specs for P3 says the height range is from .3 to 3 meters and max. speed of 8 m/s, requires adequate lighting with patterns on the floor. What use do you have in mind?
Good question, I was wondering that can I add-on VISION POSITIONING TECHNOLOGY like the Phantom 3 has so it can fly better indoors? Does anyone has any advice how to fly indoors better where the satellites are unreachable?