This change is due to two very important factors: firstly, improvements in the effectiveness and simplicity of the aids; secondly, the continued reduction in the size of the hearing aids.

The effectiveness and simplicity of hearing aids
Digital technology improves overall sound quality and allows the application of special algorithms to the reproduction of sound such as, for example, the possibility of recognising the nature of the sound, and thus the possibility of personalisation depending on the patient's needs.

The continued reduction in the size of hearing aids
The continued miniaturisation of hearing aids has solved the problem of their appearance; it is now possible to have an aid that is completely hidden within the auditory canal.