Maybe you can't hear. I told the doctor my wife couldn't hear well anymore . He said to stand behind her 15 feet and ask her what was for dinner. If she didn't answer move up to 10 feet and ask again. Repeat again at five feet if she didn't answer at 10 feet. Well, at five feet she said " for the third time it's steak".There's a buzzer? Never heard it in 5+ years!