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The American Academy of Audiology promotes quality hearing and balance care by advancing the profession of audiology through leadership, advocacy, education, public awareness and support of research.

The American Tinnitus Association (ATA) is the national champion of tinnitus awareness, prevention, and treatment. Under its guiding principles Education, Advocacy, Research, and Support the ATA offers prevention programs in schools, urges governmental and private organizations to support hearing conservation, funds the nations brightest researchers, and facilitates self-help groups around the country.

To locate theatres in Chicago with infrared listening systems.

Hearing loss is a world wide problem. One out of ten people are hard of hearing. Usually hearing aids are the number one treatment.

Tinnitus is accompanied by hyperacusis in about 40% of the cases. Hyperacusis is a decreased tolerance of sound and can be a serious problem. Some patients experience hyperacusis without tinnitus. Tinnitus Retraining Therapy can restore totally or partially the normal level of sensitivity to sound.

Etymotic Research, Inc. (ER) is a research, development and manufacturing company located in Elk Grove Village, Illinois. The name "Etymotic" (pronounced "et-im-OH-tik.") means "true to the ear." Established in 1983, ER's mission is to design high-fidelity products to measure, improve and protect hearing. ER has developed and patented some of the most innovative hearing technology available today. ER's products are used worldwide by scientists, hearing practitioners, hearing-impaired consumers, professional and amateur musicians, and others who insist on superior sound quality.

GN ReSound Group, a subsidiary of GN Great Nordic A/S, is a leading international manufacturer of advanced technology hearing instruments. The company offers a full range of hearing instruments under the GN ReSound, ReSound, Danavox, Beltone, Philips and Viennatone brand names, including software-based digital instruments and digitally programmable and traditional products in all sizes and models.

Information source on hearing aids, hearing loss, tinnitus, cochlear implants, hearing aid batteries, dizziness, and all other hearing health topics.

Hearnet is our interactive website that is updated regularly, providing information and resources on tinnitus, hearing loss, hearing evaluation referrals, hearing aids and assistive listening devices (ALD's), as well as a referral service of audiology partners, ear doctors, and entertainment links.

Oticon Inc.'s long term mission is to become the U.S. market leader in providing high-performance hearing solutions that reflect the most advanced technical designs, an understanding of human needs for people with hearing loss, and a dedication to the best customer service and dispensing systems. Our aim is to improve hearing care and quality of life, not simply to sell hearing instruments.

Siemens offers audiological software and a wide variety of equipment for Hearing Care Professionals, as well as assistive listening devices such as amplified telephones.

Widex is focused on providing the world's finest hearing instruments through a complete dedication to advanced research and development. Currently there are millions of users worldwide, enjoying the benefits of Widex premier digital hearing technology.