Questions about TFA Radio alarm clock

Which atomic clock does it connect to ? Reception in CH works ?

Hm, at Amazon you can get the thing for 17€ (just under half!). If you want to buy 1 alarm clock here at Digitec you pay 37.- plus 9.- postage = 46.- But I buy 3 of them for 50€=55.- at Amazon. These surcharges are just plain cheeky.

Why is the radio-controlled alarm clock not a radio-controlled clock? Doesn't light up, but can't be reported because the programmers leave this part out ;-)

Is the illumination always active? Can you read the time in the dark or do you have to press a button?

What colour is the backlight?