The best wireless dog fences help keep your pups safe outdoors. We tapped a professional trainer to choose our top 4 picks.

For large yards, GPS dog fences ... break. Wireless transmitters don't have the range to cover a lot of ground. Sung Vivathana, co-founder and vice president of SpotOn Fence, says his product ...

Invisible pet fencing keeps your dog within the confines you set via an in-ground wired system, or a wireless system that ... Also, an invisible fence won't keep other animals from entering ...

He developed a wireless fence where you simply draw the invisible fencing boundaries on your phone and use the accompanying GPS enabled dog collar to keep your pet safe inside a defined perimeter.