The headphones arrived quickly and well packaged. Unfortunately no German version of the description enclosed. So it is very difficult to fiddle around. I found it very negative that an app is again absolutely necessary. You just want to listen to music, it feels like you have to spend hours translating and then setting up the app, etc. Many data protection authorisations are necessary, which really annoyed me. When the time finally came, I was actually quite annoyed. The noises are suppressed well to ok, but don't come close to the big brothers that can be put on. The music sounds very good. The music could be louder, but will probably be cancelled out a bit. Overall, they sit well in the ear canal and you can forget you're wearing them. A clear advantage over its big brothers. Simple Bluetooth pairing would be desirable from my point of view. But that's probably a matter of taste.