At first we were heavily inspired. The installation was very easy, the gong super loud (you can hear him up in our garden), he also looks good. But now the supply is functioning only sporadisch.Es are no set rules for what days the doorbell is working or not (it is the phases of the moon, or it's the humidity;)) When it rained, he wants lately no longer. Actually, we just wanted a loud radio Gong, now we have a sensitive hygrometer. Very annoying, because unfortunately missed deadline for claims.