What are the different components of a hearing aid?
Hearing aid components include: a microphone that can change the acoustic input to an electrical signal, an amplifier that boosts the electrical signal, a receiver that converts the amplified electrical signal back into sound, and a power supply or battery. Most hearing aids have a volume control.
Higdon. (2004) “The Role of Speech-Language Pathologists and Audiologists in Life Care Planning.” In S. Riddick- Grisham (Ed.) Pediatric Life Care Planning and Case Management (p. 198). Boca Raton, FL: CRC Press.