This app is garbage. Half the time I spend reinstalling and restarting. Only one side works at a time or it's not synced up, sounding like an echo. I may just have to try another brand. For the money hearing aids cost one would think they would have a better app than this. I have a brand new Samsung s21 ultra, so it's not the phone. My drone costs much less and their app works great. They should not sell products they can't support. I see they tell you to reach out for a fix, but to no avail.