At first I was very satisfied with the baby monitor. It is very easy to use and does exactly what it should. There are no disturbing noise or problems with the transfer (we have the baby monitor, however, even in our 60m² apartment used). Transmitters and receivers are small and portable. The belt clip is very nice, but we do not need him. The units are a bit wobbly, the nerves a bit and would cost a star if otherwise everything would be fine. But I think it is unacceptable really, that we both Geträten must change the batteries every two days (and of course they do not run all day!)! This is both expensive and ecologically not sensible. And most importantly, I can not rely on the baby monitor at all times is serving. What good is because a monitor in the nursery if it simply goes out because of power shortage ?! A power supply is not present, even if probably would join a. Then you could, but both devices no longer simply carry around. For me, a striking lack and so just two stars worth.