Q: What’s an invisible dog fence? A: An invisible dog fence is an underground boundary system that keeps your dog safely in your yard without a physical fence. The system works best when the layout is custom- designed for your property and your dog is trained to understand the boundary. Learn more: www.njhiddendogfence.com #InvisibleDogFence #UndergroundDogFence #HiddenDogFence #ElectricDogFence #NewJersey Q: What’s the difference between invisible, hidden, underground, and e