Thanks Michael!
I feel like they all have pros and cons trading off portability and sound quality. I think I’m most drawn to concept 5 (the box with the clasp) because it’s kind of an interesting experience of opening it and maybe being surprised by what’s inside. Also, having a square face will benefit the sound quality by allowing a larger diameter speaker to fit and having it naturally on a slant pointing towards your ears.
I’m thinking of doing a few more concepts to push things and explore more and maybe something else may jump out!