The list of devices includes amplified telephones, TV listeners, flashing lamps, vibrating alarm clocks, door beacons, smoke detectors and other alerting devices. Hearing loss is invisible and almost always painless. The reason hearing loss is often unnoticeable by a person is because the change is usually gradual. Most hearing losses develop over a long period of time. Eventually there comes enough of a deterioration that the hearing loss interferes with conversational speech in many places.
People mumble more than they used to.
You ask people to repeat, especially women and young children. You notice increased difficulty following conversations in groups and noisy places You have more trouble hearing at a distance, such as church, theaters, or auditoriums. Your family and friends comment on your inability to hear and possibly that you talk too loudly. Hearing loss can prevent the quality of life you've hoped for. It can restrict your ability to interact with others, prevent receiving important information, cause misunderstandings, heighten stress, cause unnecessary fatigue, not to mention filtering out the subtle sounds of nature.