Order hearing aids, including full-shell, half-shell, canal, mini-canal, and completely-in-canal, or CIC, models.

Certified hearing-instrument specialist Russ Herman will respond to questions and supply hearing aids.

Find out about digital-signal-processing technology for hearing aids. Includes contact details and manufacturer links.

Network of hearing health specialists, including audiologists and hearing aid dispensers, provides tips for improving hearing and ear health.

Provides assistive listening devices for commercial and personal applications, as well as professional audio and sound reinforcement systems.

Retailer of batteries and accessories for hearing aids offers articles and information about hearing-aid technology and auditory health.

Outlines its products, including alarm clocks, TTY devices and educational products.

Hearing-aid manufacturer offers a variety of products. Includes an ear diagram and contact details.

Resource offers hearing devices from manufacturers at wholesale prices. Models include Telex, Unitron, Bosch and Magnatone.

Provides medical professionals with batteries for hearing aids and cochlear implants, laryngectomy products, and amplified stethoscopes.

Find out about these hearing aids that are noninvasive and require no surgery.

Audiologist offers information on hearing loss and hearing aids, and lists the locations of hearing-aid suppliers in Ohio.

Service works in conjunction with audiologists to offer discount prices on hearing aids and related products. Also sells an insurance policy.

Details its range of products, including alarm clocks, alerting devices and smoke detectors.

National Discount Battery Service provides prices for hearing-aid batteries and supplies. With ordering details.

Puppet teaches children sign language. Includes history and ordering information.

Describes its custom-fitted hearing aids, and provides contact information. See a specification table.

Encyclopedia entry explains how most hearing aids work, and details the recently developed cochlear implant.

Offers tiny-canal aids and over-the-ear aids at discounted prices. Use the order form to purchase online.

Provides a product overview of its modem and software services.

Developer of hearing technology for children and adults describes its wireless communication devices and services. Take a hearing test.

Produces and retails American Sign Language and deaf-culture videotapes and publications.

Take the hearing assessment test and check out this disposable device for mild to moderate hearing-loss sufferers. See customer testimonials.

Wireless headphones function as an assistive-listening device for watching TV and also improves hearing in public facilities.