Constant failure of one or both aids in getting sound from my S21+ Android. For what I invested in these it is extremely disappointing that they haven't fixed this bug. Annoying to turn aids off and on as well as Bluetooth. Takes many attempts always to have both aids found. Then both work for short periods only to have it FAIL again. Knowing they were aware of having Android probs it should not have not sold to me. Told my phone was old and purchased a new $1000 phone. Same problem persists.