new vocal load test with voice quality scan

lingWAVES TheraVox
session on YouTube

lingWAVES catalog

lingWAVES catalog

next exhibition:
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Representatives North America

  • AUS USA
US Hammer Speech Products and Services, LLC
c/o David W Hammer
129 Weybridge Road
Gibsonia, PA 15044

tel.: 724-759-1244
email: hammdw(at)zoominternet.net