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
Small cases for them existed. They were small, but big enough to coil the cord in without damaging it. I've used some HTC earphones from an old smartphone. I don't remember the model, but it had flip keyboard. One of the first smartphones. Those earphones are still going strong. They gotta be 15 years old or so. Easy to clean too.