does it have a swiss plug or only with an adapter?

Yes, but with an adapter so that it can be used in Switzerland. It works great this way, but it's a waste of material because you won't need the tool afterwards. And you can't reverse the connection to the Swiss plug either.

No was delivered with a normal plug, everything was fine with me!

Yes, and the Schuko attachment actually sticks out too far so that the hoover cannot be stood upright. A good hoover, but I wouldn't buy it like this again.