Features: Waterproof receiver. Protection against false activation. Veterinarian recommended and approved. Includes 1000 feet of wire and 100 boundary flags. Two levels of correction for the remote training mode. Built-in lightning and surge protection for storm-prone areas. Levels are easily changed with a push of a button on the receiver. Pet containment and remote training capabilities all in one system. Easy-to-follow owners manual covering installation and pet training. Keep your dog or cat in your yard and train him not to dig, bark or chew. Operates with one receiver collar – no need to switch receivers or collars. Uses a common 9 volt battery providing a average battery life of 6-9 months. Low battery indicator light – lets you know when the batteries need replacing. Receiver fail-safe – receiver will shut down after 20 seconds to protect your pet. Anti linger so the dog cannot stay in the warning zone and run down the battery. Loop indicator light and audible break alarm warns you if the wire has been broken. Progressive correction – receiver will automatically increase the correction level until he returns. Ideal for extremely hard to train dogs or dogs that are consistently breaking through the boundary. Five levels of programmable correction plus a vibration feature in the warning tone as an additional deterrent. How It Works: A radio signal is sent by the transmitter to a receiver on your dog’s collar. The signal is transmitted through a wire which is placed along the boundaries you want to establish. The wire is really an antenna that carries the signal. You can adjust the signal to up to 15 feet from the wire. In most cases, a 4-6 foot signal field will be the best for optimal training. The receiver provides a warning beep as your dog approaches the wire. If he starts to cross the wire, he will receive a mild correction. Although the correction is harmless, it will dissuade him from continuing: When using the remote, the fence transmitter floods the area inside the boundary wire with the signal and this activates the receiver. All receivers within the boundary will activate when the remote is used. If you have more than one dog, you may want to remove the receiver from the other dogs so they do not get a correction.