Gourt > Business > Healthcare > Products and Services > Disability > Hearing and Listening Aids > Hearing Aids (2)
A hearing aid is a device used to help hard-of-hearing people hear sounds better. In the past, a funnel-like amplification cone, called an "ear trumpet" or "ear horn", was used. Also sometimes used was a desk with a built-in amplifier into which a microphone and earphones could be plugged; these worked better than passive ear trumpets but were not portable.
Now, however, the most common style is a small electronic device that fits into the wearer's ear. The first variety of this device had a rectangular battery pack connected by a thin wire, intended to be held in a pocket. Such "body aids," though much more portable than the desk type, still suffered significant disadvantages due to sub-optimal microphone placement. Since the microphone was not near the user's head, it was susceptible to interfering sounds such as clothing-noise. Sound input was also distorted if the microphone was located below the mouth of a person with whom the user was conversing.
During the mid- to late 20th century, hearing aids that were carried in pockets were replaced by a more inconspicuous sort of model in which small zinc-air batteries were placed in the inserted unit itself.
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Audiological Services - Professional audiologist staff provides hearing testing and information regarding types and styles of hearing aids, links to hearing aid manufacturers, and answers to common questions.
Adelaide Hearing Aid Specialists - Information on hearing loss, hearing aids, digital devices, and rehabilitation. Based in Australia.
Meta Description: [ Adelaide Hearing Aid Specialists.Information on hearing aids, hearing loss and digital devices. Supply large range of devices from Oticon, Siemens, Miracle Ear, Widex, Bernafon ]
Audiological Laboratory, Ltd. - Audiology practice within the offices of five ear, nose and throat physicians. We provide diagnostic testing, hearing aids and rehabilitation services.
BetterHearing - Hearing loss and hearing aid resource site providing a free advisory online service. News page, links page, and interactive chatroom.
Meta Description: [ Hearing aid and hearing loss resource site based in the UK providing information and advice for the deaf and hard of hearing.Includes chatroom, links, news page ]
Ear-Tronics - Hearing Health Care Centers - Manufactures own brand of hearing aids, conducts hearing tests, makes hearing aid recommendations, and closely monitors patient's progress. A 4-year leasing program is available.
Hearing Aids at Sensible Prices - Independent supplier of all makes of hearing aids within the Hampshire area. Mail order hearing aid batteries within the UK.
Meta Description: [ Hampshire Direct Hearing is a local supplier of all types of analogue and digital hearing aids at 'sensible' prices ]
Intech Industries Incorporated - A leading supplier of miniature plastic hearing aid component parts for hearing aid manufacturers throughout the world.
Meta Description: [ Manufacture of miniature plastic hearing aid component parts, faceplates, battery doors and other hearing aid components. ]
Jade Hearing Instruments - Manufactures all types of hearing aids, including custom hearing equipment.
Meta Description: [ Hearing aid manufacturer of quality hearing aids to aid in hearing loss problems and improve hearing protection. We manufacture hearing aids that can improve your hearing and reduce your hearing loss. ]
NIDCD Health Information: Hearing Aids - Describes what hearing aids are and how they work, how to get a diagnosis of hearing loss, and the different types of hearing aids. From the US National Institute on Deafness and Other Communication Disorders.
Rochester Hearing and Speech Center - Audiology and speech pathology information and services; hearing aids; listening devices; information about hearing disorders.
Meta Description: [ Rochester Hearing and Speech Center identifies, evaluates and provides treatment for children and adults with speech, language and hearing problems. ]
Sonic Innovations - Manufactures and distributes a range of hearing aids and related products in Australia, New Zealand and Malaysia.
Meta Description: [ Sonic Innovations offer a quality range of hearing aids and related products manufactured and distributed in Australia, New Zealand and Malaysia. ]
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Sound Advice on Hearing Aids - Offers information about how hearing aids work, purchasing them, and laws regarding their sales. From the US Federal Trade Commission.
Stethron - Hearing Aid for Doctors - Stethtron electronic stethoscope provides powerful amplification of heart sounds, murmurs, respiration sounds, and easier ausculation diagnosis.
Meta Description: [ biomedical, This powerful electronic stethoscope an excellent diagnostic aid for doctors with hearing loss. ]
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