Works like a charm: Updated, STOPPED WORKING IN 2 MONTHS.

Our Yorkie Poo feels very responsible for keeping our home safe from anyone who dares to walk in front of our house. This level of security includes excessive barking. This bark collar was an experiment that has proven to be a wonderful solution. She still gets excited but it has controlled her barking. Give it a try. We don't use the shock feature, the vibration and beeping alone is enough to modify her behavior. Updated: this Collar worked for about 2 months then just stopped working. Even after charging, just won't turn on.

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