Limited to circular shapes; signal can be blocked by metal or thick walls. 3. GPS-Based Systems
These require burying a wire around your perimeter. They are highly reliable and customizable for odd-shaped yards. Most stable signal; no "drift." Cons: Requires manual labor (digging/trenching). 2. Wireless (Plug-and-Play) Systems where to buy electric fence for dogs
Amazon and Chewy offer the widest selection of brands, including GPS-based systems like Halo Collar and SpotOn . Limited to circular shapes; signal can be blocked