There doesn’t seem to be an off function in the app either.
I suppose they could have accommodated a button built into the mic cover, or on the back at the bottom like oticon.
The more I wear these, however, the more I like them. It really is a comfortable and attractive fit on the ear. The idea of marring it with a button makes me a bit sad. Maybe that’s how they felt, too. It’s kind of like a styletto that’s taking a bow. I like it better than the styletto.