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Review title: Works at first, Dogs got used to it.
Product review: We have a Lab, Boxer and Yorkie. At first the collar stunned everyone, and it was really quiet for a few days. The Yorkie would shake when she heard the noise, I guess she just didn't know what was going on. After a few days, the Lab started barking again and my other two dogs would cower away like they had done something wrong. A few more days later, all three dogs were barking again. Guess they got used to the sound.
