The Baby unit has unfortunately always depend on power, which I think is only partly annoying. With us the cot along one wall of the room and on the opposite side (3.5m away) is available the baby monitor. Nevertheless, you can hear every little sigh and Schreier well. The VOX feature is really great and turns on only when something louder cries. In addition, make 3 lights on the parent unit, the volume is again visually.
The parent unit is very compact and small, as the baby unit. In continuous operation, the battery will not as long, with the VOX function, it is sufficient but loose the night. (Addendum:.. After 2 nights in VOX function, you should charge the battery again I am on the 3rd night the Babypone assumed to 5 am So invite every 3rd day is completely sufficient)
The intercom function works great. My son let himself frequently so calm. But it does not always replaces the transition into the nursery. But still a nice feature.
As noted in another review, the on / off switch and the intercom button on one side. I never remember me which is which key and must first take a close look. Half asleep, that's a bit stupid.
Sound quality is good.
So one to the 2 drawbacks that I have mentioned, a top baby monitor, which allows you to make (cheap !!!) definitely nothing wrong.