I sometimes think my house is no place for an old man. My wife has the habit of talking to me and asking questions when she is two or three rooms away. At that distance and given the fact that I am a little hard of hearing , means that I frequently don't have a clue what she is talking about. My reply " I can't hear you. I can't hear you", forces her to visit me and tell me to my face what she is saying.
I'm thinking of solving the problem by buying a walkie talkie. She could have the transmitter and I could wear the ear piece.