ID:1816
Title:
Description:Perhaps the greatest inventions for hearing-impaired people are hearing aids. Hearing aids are devices used to hear sounds better. The form of the hearing aid has evolved from a funnel-like cone in the past to the present day small electronic device that fits into one's ears.
Category:Health: Disabilities
Date Added:August 11, 2008 11:57:35 PM
Number Hits:0