Jun 15, 2018
@barnwell47Consider going to eBay and/or Amazon and do a search for "fm radio bluetooth transmitter". Many of them will be for cars and you can ignore those if you are not looking for a car one.
I tried searching EBay as well as the major online merchants . As you noted, they are mostly for cars. The ones that aren’t say Bluetooth-capable but when you check into them, you find that they are 1-way streets - they’re designed to play from Bluetooth sources, but not interface with headphones. I.e., they are receive-only and don’t transmit.