Negative Positive
Title: works great, easy install, but no documentation
Review: I used this to replace an inoperative door bell/speaker from an M&S system that was installed in 1994. It fit perfectly in the existing front door bell/speaker box. As others have said you have to remove a small cover to attach the wires to the door bell-no big deal. It took me 15 minutes to install with an extra set of hands to help. The lit bell is nice and the speaker sounds very clear. I'm very happy with this purchase an I'd buy again.
Is the review positive or negative? 