PetSafe Pawz Away Indoor Pet Barrier is designed by professionals to instantly keep your dog away from problem areas in your home - no training necessary. Unlike other deterrents, ZONES- are totally cordless. You can put a ZONE near anything you want your dog to avoid - the trash, kitchen counter or protect your fine furniture. Each ZONE protects an area from 2' to 12'. Innotek's smallest collar yet- only 1.3 oz. ZONES- are wireless, cordless and run on AA batteries. 2'-12' diameter coverage area per ZONE.