[bananasbandanas]

Given a good control link such as ExpressLRS [0], people can also fly quadcopters 10+ kilometers on as little as 10 mW. See for example the range competition at [1].

Of course, the VTX is usually a different matter..

[0]https://www.expresslrs.org [1]https://www.expresslrs.org/2.0/info/long-range/