Proper containment is essential. Responsible pet ownership starts with keeping your pet safely at home. Radio Fence Pet Containment Systems provide your pet with freedom and safety while costing thousands less than conventional fencing. It's quick and easy to install, reliable and safe, and with proper training, a very effective solution. The Radio Fence system includes a free installation and training guide and a easy-to-follow installation and training video. Ideal for small to average yards. Includes UltraLight receiver, weighing only 1.5 oz! Waterproof receiver. Uses two common 3 volt batteries . Safety features include protection against false signals. Pet Containment System RF-3004W$99.95 How Radio Fence WorksA transmitter plugs into a standard outlet and emits a radio signal that travels along an underground wire. A light weight receiver is worn on your pet's collar which picks up the radio signal and emits a mild harmless static shock alerting your pet as he nears the underground boundary. Once your pet is properly trained he will learn to stay in the boundaries designate Radio Fence.