The volume buttons look pretty complicated, but that doesn't slow us down. Braced with years of experience plucking our unibrows, we dive in, a pair of tweezers in hand.

First out are the microswitches, followed by a reinforcement bracket full of rubber gaskets. Not quite the same, but similar to another waterproofing approach we've seen.

But...what's this? The button covers are oddly trapped within the outer case. We can't pop them out!

Could this mean the case is double-walled? Is this a waterproofing feature? Perhaps a structural feature? Your guess is as good as ours.