Company Established In


Audiology Aids / Instruments //

Hearing Aid Maintenance

Auditory Assessment //

Test Recordings / Tapes / CDs

Augmentative / Alternative Communication //

Educational Materials

Early Intervention Products //

Aural Rehabilitation
Infant Hearing

Professional Products / Services //

Continuing Education

SLP - Assessment Tools //

Receptive Language

SLP - School Related Products //

Aural Rehabilitation
Expressive Language

Speech, Language, Swallowing Treatments //

Aural Rehabilitation


CID is a school where children who are deaf and hard of hearing to listen, talk, read and succeed. We partner with families and collaborate with universities, educators and other professionals worldwide to help children communicate to achieve their fullest potential. Since 1914, CID has been committed to preparing teachers—then other professionals with the development of related fields—with deaf education resources developed at CID. These include curricula and assessment tools, listening support products, online learning courses, continuing education workshops, in-services and guided observations designed for teachers, pediatric audiologists and speech-language pathologists.