kowalskil Posted July 17, 2015 Report Share Posted July 17, 2015 Personal Sound Amplifiers (PSA) Hearing aids are very expensive, typically from $3000 to $6000 a pair. But some people might postpone wearing them, for many year. I describe this alternative at my university website: http://csam.montclair.edu/~kowalski/aps.htm Feel free to share this short essay with others. Comments will be appreciated. Ludwik Kowalski (see Wikipedia) Quote Link to comment Share on other sites More sharing options...
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