Depends but I have some cheap esp based heltech knock offs from temu that do about 2km from being haphazardly taped into my upstairs windows. Power draw is about 200ma but I don’t bother with deep sleep or other optimizations. I’m in a flat suburban area.

I imagine it’d be much better if I whipped them up on the chimney with proper antenna but for something that just fits in my pocket they’re really impressive.

Memooorreiiieeesss of having dozens of angel fire accounts to get around their 25 mb limit running a very cool, very legit download site. My bros had all the latest dojin fighters from comiket.