Expand your Pawz Away™ Outdoor Pet Barrier system with Extra Barriers to protect multiple outdoor areas. An unlimited number of Barriers will work with your pet's Pawz Away™ Receiver Collar. Key Features * Waterproof and battery operated barrier fits easily in small spaces * Distinct settings for multiple pets * Easy setup and training Features * For dogs and cats 5 pounds and up * Add extra barriers for any number of protected areas * Add an unlimited number of pets with additional collars * Waterproof * For indoor or outdoor use Compatible with: * Pawz Away™ Indoor Pet Barrier (ZND-1200) * Pawz Away™ Outdoor Pet Barrier (PWF00-11923) * Pawz Away™ Mini Pet Barrier (PWF00-13665) * YardMax™ Rechargeable In-Ground Fence™ (PIG00-11115) System Includes * Barrier transmitter (3 alkaline AAA batteries required, not included)