Keep your pets out of flower beds water features and other outdoor spaces with the PetSafe Pawz Away Outdoor Pet Barrier system. The system comes with a cleverly disguised transmitter that blends into your landscape plus a receiver collar for your pet. When your pet enters the barrier zone you set up the transmitter sends a safe static correction to his receiver collar. The system has a wireless setup option that protects a circular area up to 16 feet away. You can also create a custom shaped barrier using up to 150 feet of boundary wire (sold separately). You can add an unlimited number of pets to the system if theyre wearing a PetSafe Pawz Away Receiver Collar (additional collars sold separately). You can also set up an unlimited number of off limits areas with additional collars. Trust PetSafe to help keep your pet healthy safe and happy.