PetSafe Stubborn Dog In-Ground Pet Fence for Dogs and Cats - from The Parent Company of Invisible Fence Brand – Boundary Wire Not Included – Pick Your Wire Gauge Separately;

To help manage your strong-willed pal, this in-ground fence comes equipped with five adjustable levels of correction, including a tone-only plus vibration mode. The adjustable collar is especially designed for hard-to-train dogs. Relax, help is on the way! Includes: Tone plus vibration only mode for training, Anti-Linger Prevention and Progressive "run-through" Prevention. For pets over 8 pounds. System Includes: Transmitter with Power Adapter, Stubborn Dog Receiver with adjustable collar for pets with neck sizes 6" to 28", Operating and Training Guide, 50 Training Flags, 9 Volt Battery, Test Light Tool, Waterproof Splice Capsules and Wire Nuts and Interchangeable Contact Points - long and short. Five adjustable levels of correction for stubborn or hard-to-train pets-highest intensity available Covers up to 10 acres with additional wire and flags (wire sold separately) System works with multiple pets (additional PetSafe Receiver Collars required, PRF-275-19) Warning tone with pet-pager vibration ideal for training hearing impaired dogs Waterproof Receiver Collar with low battery indicator