Innotek Smart Dog Rechargeable In-Ground Pet Fencing SystemThe fast, easy way to keep your dog home and safe. The Smart Dog Rechargeable In-Ground Fencing System can be installed quickly using common household tools. The transmitter fits any decor. The microline collar is totally waterproof and looks slim and shapely on your dog. Boundary self-check with audible and visual wire break alarm gives you peace of mind that the system is working. The built-in battery backup keeps the system working even when the electricity fails. With the step-by-step training program, your dog quickly learns which areas are off limits. When your dog approaches the buried wire, a radio signal tells the dog's collar to administer a brief, harmless stimulation which he'll learn to avoid. Transmitter with battery backup and wire break alarms. Run-through prevention offers reliable, secure containment. Microline waterproof rechargeable collar with recharge reminder. Multiple levels adjust to fit your dog's temperament. Reflective collar strap for added safety at night. Can be expanded for yards up to 25 acres. Kit includes 500' of insulated boundary wire for up to 1/2 acre of coverage, wall-mount transmitter with adapter, collar, training flags, hardware kit and support hotline. Realize that because dogs have unique temperaments, there is no way of knowing how your dog will react to the introduction of a training collar system. For the safety of your dog, a long lead should be used during initial training so you have control of the situation. If you have reason to believe that your dog may pose a danger to others, harm itself, or react adversely to the collar, do not rely solely on this product to train your dog. If your dog shows signs of growling, snarling, or biting while using the collar, stop immediately. Aggression in dogs has may causes. Innotek recommends that you consult a knowledgeable professional dog trainer or animal behaviorist with experience with aggressive dogs if your dog has shown any of these characteristics. Occasionally, a dog cannot be trained to respond to a training collar. Sometimes even a properly trained dog may disobey a command. Therefore, Invisible Technologies, Inc, its distributors, and dealers cannot guarantee the customer's animal from disobeying commands.