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 in diameter. With a little time and training your pet will soon learn their new play area (and your plants will thank you). Your pet deserves the best. Trust PetSafe to keep your pet healthy, safe and happy. Pet-proof outdoor areas like the pool, garden, patio furniture and children play areas Cleverly disguised as a rock to blend in with surroundings Protect an area up to 16 feet in diameter with no wire Receiver collar for pets 2.3kg with neck sizes 15-71cm Collar uses Progressive Static Correction- begins at the lowest level and increases to maximum Battery operated transmitter (4 D-cell batteries, not included) Battery operated receiver collar (2, 3-Volt lithium batteries, included) Automatic safety shut-off: correction stops after 15 seconds System Includes: Waterproof Barrier Transmitter (4 Alkaline D batteries required, not included) Waterproof Receiver Collar with two 3-volt lithium batteries (included) Operating and Training Guide Test Light Tool