A:Answer Comlicated answer, it depends on a lot of things including interference, walls, ect.. that affect ALL wireless devices. I have the doorbel about 8ft from my module and it works great, I also have a blink camera outside my house a good 40ft away and it works as well.
Things like Metal Walls, high Energy devices, ect.. can affect your quality so it's hard to give a good estimate.
