I love my Black Widow phones for comfort and hearing all the tones the various detectors use. The only detectors I can't use them on are the water detectors that have their phones hardwired.Monty said:I have a high freq loss in one ear. I'm not sure if I am missing something or not since I wouldn't hear it in the first place. Actually I can hear sounds, just can't tell what is being said if it is conversation. Monty