The big advantages of this doorbell kit are:
* 1 receiver to 220V (it is still connected and functional and consumes very little)
* 1 receiver on batteries, are you taking with you (garden, floor, garage, etc ...)
* A reach unusual since you can move up to 300m in theory: for my part, I did a test on 100m, and it's not bad !!! I was on the other side of the subdivision with the bell in hand, and my wife heard me, I was surprised.
I currently have no fault or negative I see in the immediate future, it is very easy to use and chooses his ring that is blocked (the children are not fun to change continually as this was the case on the other brand I had !!). For cons, the choice of ringtones is long, there are a lot, and when we found the right one, it must pass the following 50 to return to the first ARGHHHHHhhh ... ... Maybe I would have the unplug (or remove batteries) and start again, it would have been easier (I did not think)?
Note that I had previously another brand of doorbell with which I had brought problems (sold for 100m), and I did not pass through the wall on which was attached the bell. With this bell, no worries, I am delighted, it replaces my previous model.