Recent Content by Jan Koopmans

  1. Jan Koopmans
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    Acoustic CR® Neuromodulation: Do It Yourself Guide

    Question? About tonal T. ACRN does not increase the volume of my T. What it does. Using ACRN my T. has dropped in 2 years from 8400 Hz to 2200 Hz...
    Post by: Jan Koopmans, Dec 11, 2017 in forum: Treatments