For my needs the winder could be better / thicker padding. The contact surface is underlaid with a paper-thin pseudo-velvet / -felt. In general, the housing is very light and made of thin plastic.
The device is in operation (ie it rotates) quietly. About as loud as a cassette player, rear idle, so the last minute, when nothing more is on the tape on it.
On the bedside table I would not but ask me. I like already no ticking / luminous alarm - the sleep hygiene due; o).
The instructions are printed rather small and lean. In addition, different information are turning towards it. But the fact is, there is only right or left around.
The middle part can be pulled out. Then the rear attachment can compress about 2 cm, and the clock are strapped. The total volume is about 20.3 cm. The lid is flat. The distance from the Aufschnallfläche to the lid interior is about 2 cm
No Battery operation possible.