Invisible Fence stops Guard Dogs

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PetStop invisible fence demonstrates here how well it works as these German Shepherds can’t break this invisible force field for very long without receiving the highest level of correction (shock) by the collar they each are wearing around their neck. What you can’t see is that under the snow buried in the ground is a cable the sends a signal to each dog via a collar worn around the dogs neck. The dogs first hear a audible tone letting them to know to back off they are too close to the boundry line. If you listen closely you can hear the tone from the lighter colored dog and then he backs up knowing he is about to receive a shock if he does not.

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