(L) Grey (AT&T compatible) SpotOn Fence GPS Dog Fence Collar (Model: SOF-000-LA) is designed by SpotOn Fence for dogs. This waterproof and rechargeable collar is made in the United States. It utilizes GPS technology to create a virtual fence for your pet, allowing them the freedom to roam within set boundaries without the need for a physical fence. Perfect for large dogs, this collar provides a safe and effective way to train and contain your pet with setup in minutes! #1 rated GPS Dog fence! This collar uses the AT&T cellular network for tracking. PROVEN TO BE THE MOST ACCURATE GPS - The GPS collar connects to 128 satellites; create precise boundaries, even in heavy woods. Easy setup with hundreds of location types to accommodate traveling! I am selling only because right after we purchased, we found our forever home which has a physical fence. Our dog was trained by his trainer on a live farm with this collar & it served as a fantastic resource! Brand new, only opened for pictures in this listing.