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Title: DOES NOT WORK
Review: This product does not work at all! It didn't even almost stop the barking or lessen the barking. And no matter what setting you put it in, the "inaudible" noise was very audible. Also, it takes 4 'D' batteries which will be very expensive when it is continually running because the dog won't stop barking!!! We are returning and looking for another solution.
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