Optical ok, complicated operation

My requirements for a baby monitor is that both sender and receiver with battery / batteries to operate it handy and easy to use and, of course, that it is reliable. A charge function in both units would have been nice.
This model here, after all, has a parent with battery charging function.
Visually and in terms of size, I think it's fine. The display is advised admittedly rather small.
What I like is the noise-free transmission of the baby makes noise. I knew from my old device differently.

However, the reception could be better. Sometimes I hear the baby before the device strikes at all! Lullabies, temperature display and time-or. Wake I find unnecessary. Especially because the time is no longer correct, when the device is turned off once!
In general I feel the operation by this not few functions more complicated.
The supplied batteries were broken operation after a few days! I find that the parent needs a relatively high current, the battery / batteries should last only a few hours. Unsatisfactory for me. I will now test the device for a few days and then decide if I'm going to keep it. Unfortunately, the offer is in this price range and with the above requirements not so great and I will have no choice but to be content.

Delivery Service Amazon as always top!

Addendum: The unit has declined after a few weeks because the baby part of the lullaby mode gave a whistling sound by itself. For the baby's sleep is not conducive.