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Originally Posted by Ellie May  Yes.
I think it has levels so that it can be audible to humans and non-audible to humans. It is likened to nails on a chalk board with humans.
I don't know if this site is trustworthy though. |
eeee... not sure i would go with that- i think it would be a bit painful and irritating to her- but i guess it depends on how bad you want the barking to stop.... that's a tough one.