The PetSafe® Pawz Away® Indoor Pet Barrier keeps your pet away from a certain room, away from trash, off furniture, etc. Just place the Barrier Transmitter near the area your pet should avoid. The Barrier Transmitter sends a spherical radio signal, reaching up to 12 feet in diameter or a 6 foot radius. Your pet wears a Receiver Collar with Contact Points that touch his neck. When your pet enters the Barrier Area, he’ll hear a series of audible tones from the Receiver Collar and he will feel a safe Progressive Static Correction, delivered through the Contact Points on his neck. The Progressive Static Correction will get his attention, but will not cause harm. The correction continues until your pet leaves the Barrier Area. The PetSafe® Pawz Away® Indoor Pet Barrier has been proven safe, comfortable, and effective for pets at least 6 months old and 5 pounds or more.