Title: Does not work for Labs.
Review: I purchased this product to help curb my dog from barking in the yard...a habit he picked up from a couple kennel visits. I have used it for approimately three weeks, changing the height, position in the yard, and the utilizing/not utilizing the directional funnel. Although the sound seemed to annoy my lab for a second, it only lasted a second and he did not stop him or change his behavior in anyway. I do not recommend this product for stubborn barkers.
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