We used to have earbuds that don’t need to be charged because they had a headphone jack, didn’t get lost so easily because they had a cord attached to a headphone jack, never lost the bluetooth connection because they had a headphone jack, and they cost less because they had a headphone jack. https://bsky.app/profile/daisyfm.bsky.social/post/3l3mfjc6sn62k
I think most USB-C ports have sensors that allow them to turn off when wet. I’m not sure what the challenges are doing something like that with the headphone jack.
They don’t even need to do that. Just blast music straight into the water. It’s not like anyone would be listening anyway.