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
The ones ive seen for Bluetooth go into the cigarette lighter port.
That's just power. You still need an audio connection.
Other replyer answered, it would broadcast your phones music onto a radio frequency.
I remember those. They were the radio frequency ones?
I think so, I couldn't remember how they actually connected to the radio but that makes sense. It had a switch on it for 3 different stations so yoy could pick an empty one.
Yeah. Those are the ones. You had to choose the frequency, then set your radio to that. I always preferred the fake cassette tapes with the aux cable. less static.