The Pawz Away Mini Pet Barrier creates avoidance areas up to 5 feet in diameter. It teaches your pets to avoid areas inside the home and outside in the yard. The transmitter sends an elliptical radio signal adjustable up to five feet. 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 beeps from the collar and he will feel a safe, static correction which is designed to startle instead of punish. Create multiple "no no" areas by adding extra Pawz Away Mini Barriers (PWF00-14040 - sold separately). Or Control multiple pets by adding extra collar/receivers (PWF00-13664 - sold separately). The Mini Pet Barrier will keep your pet off kitchen counters, away from the trash, and off your furniture to protect your pet and your home.