Inspite of exactly what the ads show you, drones crash on a regular basis. A great drone will take an unplanned descent and floor interface (aka: a crash) in stride, without harming the frame. It will also include things like shields to guard the rotors and electronics from hurt. They're https://www.aeroindustrial.com/product/dji-matrice-3d-con-dji-care-basic-1-ano/