The advancement of hearing aids the past 100 years has been splendid, with adjustments being made each year to better the hearing experiences for millions of individuals. Starting with analog devices, contemporary hearing aids are now mostly digital, with fully customizable characteristics. Some of these characteristics that are precious by hearing aid wearers include feedback reduction, directionality, compression, expansion, amplification, and overall design.
In the past hearing aids were worn out of complete necessity, but now they can be worn by a wider part of the population who would like to hear better. There are behind the ear hearing aids referred to as BTE, in the ear hearing aids commonly called ITE, and hearing aids that are completely within the ear canal, called CIC. The stunning advances in design have made some models almost impossible to see.