someplace where you're likely to hear it from everywhere...

Someplace inconspicuous, that allows you to hear it

I recently buy a wi-fi doorbell chime and the installation is on the electrical outlet, possibly to move it if we want.

In our last house it was placed in a conspicuous spot near the family room and I hated looking at it. My handy hubby moved it to the wall behind where it was (shared wall, just the other side) and that happened to be in the kitchen, he was able to place it above the upper cabinets. Our cabinets didn't go to the ceiling, but close, you couldn't see the box anymore but it was still heard easily from everywhere in the house... Except my master bathroom... But you couldn't hear it in there before he moved it either.