DESC: Keep your dog on your property and safe with this containment system. Simply bury the wire to form an enclosure, then plug the transmitter into a standard outlet. A lightweight, waterproof collar receiver gives your pet one of four levels of correction, tone or vibration when the boundary is reached. After a few short training sessions, your dog will remain within the encompassed area. This system includes 1,000 ft. of wire, 100 training flags, receiver and wall-mountable transmitter - enough to cover 1.4 acres. By purchasing additional wire and flag kits, you can expand the containment area to 100 acres. And you can contain multiple dogs by purchasing additional receiver collars. Collar receiver has an anti-linger feature that prevents your pet from standing in the warning zone and depleting batteries. A low-battery indicator on the receiver collar and a wire-break alarm on the transmitter give you peace of mind the system is up and running. Pet Fences