Anything between Drone and the Remote control line can affect. Depending the drone and I mean the technology like OccuSync 2.0 allow you have some obstruction in between and still the signal penetrate, depending the distance or how big is the obstruction. The closer you are, the better. The Mavic Mini 1 for example is very sensible to obstruction and interference as well since is just enhanced Wi-Fi technology, the Mini 2 is OccuSync 2.0. Remember you should keep always VLOS.New on here from a Parrot Bebop 2 so here’s my first question do buildings affect the connectivity to the drone?