If you have at home DAB + receiver need only plug in the clock radio in the socket and it displays the correct time. What is so known perhaps not, he has no back-up battery in case of power failure times. Bad? Only if you have to get up during the power outage. Otherwise not.
One of them is always for two months without electricity (secondary residence). Plug in and adjacent to the exact time he still knows when he has to wake up.
The manual has little text, but may well explain everything.
We all know that the speaker does not sound great. But you can make the sound a bit more pleasant. First trick would be to relax the lower housing screws and the housing slightly lockern.Zirka 1mm.
If you hold a "hollow hand" behind the speaker the sound is much better. If necessary, could be a half circle from colorful cardboard, plastic on the speaker draufstellen to improve the sound.
For DAB + / FM reception is not to say that is the Pure clock radio reception here is very strong.
One should in aligning the wire antenna sure in which polarization of the local DAB + transmitter transmits. For me there are two channels, one sends vertically, a hjorizonztal. I then like an "L" fixed on the bedside table, the wire antenna.