- a microphone
- an amplifier (most employ digital signal processing)
- a miniature loudspeaker called a receiver
- a battery.
viagra ht8501 In-the-canal (ITC)
When an ITE hearing aid occupies a sufficiently small portion of the ear, it’s referred to as an in-the-canal (ITC) hearing aid.
purity solutions cialis Completely-in-the-canal (CIC)
Hearing aids that fit entirely within the ear canal are known as completely-in-the-canal (CIC) hearing aids. These hearing aids use small components and don’t protrude into the outer ear.
Behind the ear (BTE)
BTEs are used for all types of hearing loss from mild to profound. In these devices, the electronics and receiver are mounted in a banana-shaped case, and the sound is passed via a tube to a custom ear mould. While they are still discreet to wear, they’re also typically more powerful than ITE varieties.
BTE aids can be open or closed. ‘Closed’ means that the ear mould almost completely fills the outer ear and ear canal, while ‘open’ fittings use a thin tube in place of an ear mould to connect the aid to the ear. There is also a receiver in each of the canal options that consists of a receiver placed within the canal and connected to the BTE unit via a thin tube.