dog to the underground fence system, create a calm and positive environment. Dogs are highly sensitive to their owner's energy and emotions. Approach the training with patience and consistency, ensuring your dog feels comfortable. Start by familiarizing your pet with the collar and the sound it makes when they approach the boundary. Use positive reinforcement to create a sense of trus... https://www.amazon.com/Dog-Fence-Underground-Longevity-Continued/dp/B00ETAIE0A