The Shock Sound SuppressionTM technology found in each Zounds hearing aid is constantly listening for such fast, drastic, and loud sounds found within your listening environment. When identified, your Zounds hearing aid will suppress or lower the sound to a comfortable level. As referenced in the above image, Shock Sound SuppressionTM identifies an aggressive sound and suppresses it, keeping the white sound waves within the dark gray area, which represents our comfortable spectrum of hearing.