I tried on of these out. The sound was much better with the corded headphones that came with the phone. This just makes it too bulky if you are out running. It would be illegal to use while driving.
Can it just be plugged into an mp3 player and I can use the earbuds to listen to it? I’m confused if you need “blue tooth audio device” or… if a mp3 player that is blue tooth even exist.
So I’m guessing it is 3 pieces. You have a blue tooth transmitter you plug into the phone, blue tooth receiver, and head phones that plug into the receiver.