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March 25, 2008



I am 33 and I heard 21.1.
In fact I remember an old TV that made a high-pitched whine :-) Only my sister and me were able to hear it. It was really annoying!
Regards from Spain! I like your blog!


I have a shelty who is 12 and hard of hearing. I would like to get her attention,etc. Is the Acme 210.5 for hearing problem dogs the best in this situation...compared to the variable freq. ones,etc.???? Thank you for your time and consideration, Chuck


Interesting to know.

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  • Diane A. Kelly
    Diane Kelly is a Senior Research Fellow at the University of Massachusetts, Amherst, where she studies the neural wiring and mechanical engineering of reproductive systems.
  • James L. Cambias
    Jim Cambias writes science fiction and designs games in the lonely wilderness of Western Massachusetts.