Dog Health Questions: Are there any supersonic dog training devices that work from more than 20 feet away?

If so send a link. If you dont know, dont waste my time and dont answer.

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I do think you mean ultrasonic. Unlike the snot that answered before me, here is a link to some different ones on amazon:
http://www.amazon.com/s/ref=nb_ss?url=search-alias%3Daps&field-keywords=ultrasonic+dog+repeller&x=0&y=0

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• I've never heard of a supersonic (faster than sound) dog trainer, but there are ultra sonic (high frequency) anti-barking devices.
  
  Google "super bark free" for a device which works at 50-60 feet, suitable for an annoying neighbor's dog. It comes with a 60 day free trial.
  
  I'd usually get the asker a link to the product, but your comment was kind of a turn off for me and I don't want to waste my time either.