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Title: Does not work!
Review: Well, after reading all the positive results, I decided to buy one. I was excited to use it on my dog when it started barking. It did not make one bit a difference.I can hear it humming when I get it close to my ear and the red light comes on, so I know it works. My dogs hearing is very good also. Even when I point to my dog 5 feet away, it still has no effect. Don't waste your money. Throw empty coke cans filled with a few pennies. It works better...
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