PetSafe Stubborn Dog In-Ground Fence for Hard-To-Train Pets, Waterproof, Tone & Static

1/3 Acre Coverage - 500 ft of included wire lets you contain up to 1/3-acre yard; purchase additional wire to contain up to 25-acres For Stubborn Dogs - 4 levels of adjustable static correction and a tone plus vibration mode help keep the most persistent dogs safe and secure inside their designated play area For Hearing Impaired Pets - Vibration mode on the receiver collar makes this a great option for pets who have trouble hearing Fits Most Yards - This do-it-yourself weekend project lets you create an in-ground fence designed to fit your yard Over Correction Protection - An automatic safety shut-off feature will keep your pet from receiving extended static correction if they remain in the correction zone for 30 seconds Waterproof Receiver Collar - The included lightweight, waterproof collar fits pets weighing 8 lb or more with neck sizes between 6-28 in Contain All Your Pets - With the purchase of additional collars, this in-ground fence system allows you to safely contain an unlimited number of pets Compatibility - Works with all PetSafe® In-Ground Fence™ receiver collars except YardMax® receiver collars