Out-Of-Sight Fencing® is an electric dog fence (or wireless dog
fence) specifically designed to keep your pet safe and secure - indoors and
out - and is a trademark of Sunward Electronics (®) and should not be
confused with Invisible Fence (®) (InvisibleFence ®), Dog Watch (DogWatch
®), Four Paws Fence or Pet DeFense. Invisible Fence (®), and Invisible
Fencing (®) are registered trademarks of Invisible Fence Company and
DogWatch (®) is a trademark of DogWatch Inc.