The more I look around their site, the more convinced I am that it's legitimate.
And I don't feel that it's outside of the realm of plausibility that these products would exist at these prices. Minimalists tend to take minimalism pretty seriously and are, paradoxically, generally wealthier than non-minimalists.
If any of these products don't actually exist, they probably should. I'm sure there's a market for them.
https://en.wikipedia.org/wiki/Punk'd
Looking at their other products like the $185 alarm clock:
https://www.punkt.ch/en/products/ac01-alarm-clock/
... and ridiculous cordless phone:
https://www.punkt.ch/en/products/dp01-cordless-phone/
... I think this is a site/company set up as clever commentary about how the $10 items that have been around for decades already satisfy our needs.
(And many people here were "punk'd" by it.)
Even better, it looks like they actually took some of these ideas to market? http://www.amazon.com/dp/B004U5V7V2/
But I still suspect it's all a grand parody.