Did you know? Hearing aids are advanced medical devices that enable you to hear in quiet and in more difficult hearing environments Hearing aid technology has come a long way from the big, bulky devices of the past. Most hearing aids are now extremely cosmetic and nearly invisible when worn. Many hearing aid users can now wear hearing aids that are open in the ear canal eliminating the head in the barrel effect when the ear is plugged. These open fittings allow for more natural sound quali …