The Waterproof Pawz Away Outdoor Pet Barrier safeguards outdoor landscaping and keeps your dog away from pools patio furniture trash cans and other off-limits areas. Its disguised as a rock to blend seamlessly with backyard landscaping and its versatile receiver collar also works with the UltraSmart In-Ground Fence and the Zones Indoor Barrier systems. There is no need to change your dogs collar to change his protection indoors or out.