Some dogs were born to test limits. But the Stubborn Dog In-Ground Fence™ system sets firm boundaries that you’ll quickly train them to understand. Here’s how it works. You’ll set the boundary by burying wires around the perimeter of your yard. Your dog wears a collar that picks up the signal from the transmitter. As your dog nears the boundary wires, a beep alerts your dog, giving them a chance to stop without any correction. For those that continue, a safe static correction reminds them to stay in the area you’ve established. Simply adjust the correction level if your dog continues to test the boundaries. After about 2 weeks of training, even the most stubborn dogs can start enjoying their new yard freedom! And for hearing-impaired or senior dogs who simply can’t detect the beep, there’s a special vibration mode. Your furry friends will certainly thank you for the extra help in keeping them safe!