PetSafe Basic In-Ground Pet Fence – Covers 1/3-Acre Yard with Included Wire – Expands up to 5 Acres

1/3 Acre Coverage - 500 ft of included wire lets you contain up to a 1/3-acre yard; purchase additional wire to contain up to 5-acres 4 levels of Static Correction - 4 levels of adjustable static correction and a tone-only mode help keep your dog safe and secure inside their designated play area 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 6-26 in Battery-Operated Collar - The collar has a low battery indicator and uses replaceable PetSafe® RFA-67 battery; battery is included 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