Questions about Sony Mdr-Xb950n1

Of course, the headphones reduce sound, but I wouldn't buy them for that purpose alone.

Mostly unfortunately different purchasing conditions

I don't know exactly, but I estimate 7-10 metres.

Unfortunately, Digitec does not have these headphones in the showroom. You could check if a larger Interdiscount / MediaMark shop has them somewhere, they still often have headphones in the showroom. You can't send them back either, just a warning! Digitec does not take back opened headphones.