Runs absolutely silent - bell pretty loud

So the most important is said, because it is the first and only alarm clock with this combination of properties, I've found. You can fall asleep and sleep through the night without annoying Geticke and wakes definitely on. the alarm clock is so loud that you can not have him hear but not so loud that the neighbors with the same wake - just right.
There is a well-to-use, practical night lighting in case of need. The build quality is solid, the optics valent (but of course plastic in this price range). A 1.5 volt battery is sufficient for the operation. All in all: Very well thought out and practical, focusing on what is essential and without unnecessary frills, with a very good value for money.