D.T. Systems 190DT No Bark Trainer, Black

This worked very well. Our mastiff stopped barking at everything. Now she only barks at the collar when we take it off lol.

This Trainer collar works, but not well on our dog. Maybe its because we have a Mastiff. She barks right through it. I have turned it all the way up and it doesnt really bother her. If you have a big dog I would try something diffrent

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Dog is able to move it around his neck unless I have it so tight that it will hurt him. I think the product works fine, my dog just figured out how to move it.

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