I'll just add here - I am trying out the Bathys and love the sound (don't love that I can't disable ANC, but that's a separate issue) and the volume steps are a big issue for me. One step is just little too quiet. The next step up is gigantic and just way too loud. I am on iOS and even using Shortcuts to specify an exact volume percent doesn't work (that's an iOS issue). I'm usually hanging around the 45-55% volume level on iOS, and I can't find that Goldilocks zone. One step is too quiet, the next step is much too loud.
I don't want to have to buy a 2nd phone just to use with these headphones - defeats the purpose of bluetooth cans being convenient more than anything IMO.
I don't have this issue with the PX8, PX7's, or any other bluetooth can I've ever tried. For some reason the built-in volume steps on the Bathys are just really big. It's a shame, because they sound great and it would be a no-brainer for me if this wasn't an issue; as-is, it's making me want to return them because finding the right volume level is really frustrating.