How does the breggz Zohn-1 optimize the audio experience for users with reduced hearing in certain areas of the range?

The Zohn-1 is already finetuned by default to deliver a balanced, wide-range experience. However, some of us have reduced hearing in some areas of the range that can be identified through a hearing test in the breggz app. The tuning is then optimized to fit your exact hearing. After the hearing test you can easily switch between your personal hearing setup or the standard professionally tuned profile. Surely standard equalizer options are available as well.