PetSafe Stubborn Dog System Stubborn Dog In-Ground Fence

An underground dog fence from PetSafe designed for the strong-willed dog Works with multiple dogs when you buy additional collarsFeatures tone/vibration only and five progressive static correction levels6.5-oz waterproof dog collar adjusts from 6" - 28"Even stubborn dogs can be safe and secure. This in-ground fence system from PetSafe is designed specifically for hard-to-train dogs. A warning tone alerts him as he approaches the boundary. Collar has five progressive levels to stop dog from leaving the safe area. Use the level needed to get his attention. Can be used in areas up to 10 acres. (Additional wire and flags are needed for yards over 1/3 acre.) Follow the training instructions to accustom your dog to his new parameters, and soon you will feel confident in knowing that he is safe at home. Low-battery indicator. Extra Collar also available. For dogs over 8 lbs. Lifetime limited manufacturer's warranty. System includes: Transmitter with power adapter, receiver with adjustable, waterproof collar, step-by-step installation and training DVD, operating and training guide, 9-volt battery, 500 feet of 20-gauge boundary wire, 50 training flags (enough for 1/3 acre), and test light tool.Please click on "More Information" for a product overview, key definitions, and operating and training guides.