Generally, similar components are used by hearing aids to receive, amplify and send sounds into your ear from your surroundings. Majority of hearing aids are digital and make use of hearing aid batteries to function.
As the tiny microphones receive sounds from the environment, it is converted into digital code, using a computer chip with an amplifier. The chip assesses the incoming sounds and adjusts it to meet your needs. Then, the amplified signals are transformed into sound waves, while the speaker sends them to your ear.
Hearing aid styles
There is a variety of hearing aids based on their cost, size, and functions.
Below are the different types of hearing aids, in order of size, that is, from the smallest to the biggest. As the demand for smaller hearing aids increases, hearing aids designers produce more of the type. However, smaller hearing aids may not function as much as the bigger ones.
Completely in the canal (CIC) or mini CIC
The Completely-in-canal hearing aid is designed to fit perfectly into your ear canal, and in adults, it enhances regular hearing loss.
• It is very tiny
• Small batteries power it with a short lifespan
• It has very inflexible, simple features
• It is not very sensitive to sounds
• Its speaker easily get clogged up by earwax