The YardMax Rechargeable In-Ground Fence maximizes the space you have available for your pet to explore. The system works with a rechargeable receiver collar and a transmitter inside your home. Simply bury wire in your yard to set your pet?s boundaries. When your pet crosses the boundary, the collar will give a warning beep followed by a static correction to remind your pet to stay within the boundary. With the YardMax, space is maximized because the warning zone for your pet begins on the other side of the boundary wire, giving your pet more yard space. The Static Correction Zone continues past the Warning Zone. Even if your pet continues beyond the Static Correction Zone, the Receiver Collar continues correcting giving your pet the perception of an endless boundary.Your pet will receive corrections from the receiver collar until he returns to his area, or until the collar times out for safety.