Loved the fact that I could listen to my music and use my phone hands free using my hearing aides.Upgraded my phone to samsung S21 on the week end and now when I attempt to connect to Bluetooth it says app needed.I keep connecting to the app and it keeps disconnecting.Spent hours trying to configure to connect and cannot do it.So very frustrating and disappointing. Being able to answer my phone and listen to music with a tap to the ear without having to dig for the phone was convenient