Invisible Fencing is a type of pet containment system that uses a buried wire to create a boundary around a designated area. When a pet wearing a special collar approaches this boundary, the collar emits a warning sound, followed by a mild static correction if the pet continues to move closer. This helps train pets to understand their limits without the need for physical fences. The system is often used for dogs and cats, allowing them to roam freely within a safe area while preventing them from wandering off. Invisible Fencing can be customized for different yard sizes and pet behaviors, making it a flexible option for pet owners.