Most of the time, people use their smartphones to stream. Every now and again some people prefer to be hands-free, don’t have the most current version of talking with a mic in their hearing aid, so they like that “middle piece”. This piece worn by the user, connects via standard Bluetooth to the phone. Now when a call comes in, the audio goes via the middle piece to the hearing aids.
For clear crisp hands free talking! Perfect for walking your dog and talking on the phone.