After a long search I have found in the rest of that "Eco Mode" and "free of [...] radiation in standby" means that it reached only at the "start" of the transmitter / receiver, so at a certain Lautsärke , ever gives radiation. Then only in the short term as long as the volume continues. The sensitivity can be regulated, in the highest level with continuous transmission (but then also continuous radiation). That it then DECT signals and thus probably relatively strong radiation is, I do not feel too bad as since it is as I said, even temporarily. If in doubt, you have to go somewhere anyway. The compromise falls in any case in favor of the transmitter / receiver performance that is very good. Besides, who has please because no WLAN or DECT telephone, mobile phone, etc. in the same room as his baby? So ...
My gripe: even in the loudest setting, the receiver speaker is too quiet. When one except the receiver has more sources of noise in the room, it's hard to hear something about the recipient, even if the Ünertragung itself and the transmitter sensitivity function perfectly. And typically you have the baby monitor so on, if you, the computer is in another room watching TV, listening to music, Cook (with extractor hood, convection oven or similar.) ... So you have the recipient actually right next to the ear have, which usually is probably more difficult ...
After all, there is a visual display; if the start, you may have to quickly dan receiver to your ear. And the best you can hear just very good at what for me fortunately is still the case ;-)