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Title: Does not really work
Review: Tried this out on a few annoying barking dogs in the neighborhood and it didn't really work. It appeared to have worked on a small yap-happy dog but on subsequent trys I got nothing. Also tried on a very agressive dog who was behind a fence and it appeared to only make him more hostile. It's too bad cause from the previous reviews it sounded like it would work. Really need a larger more expensive unit if you really want to stop incessant barking.
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