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

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 ...

This wireless unit from PetSafe allows ... You can use it to extend your invisible fence inward without creating a barrier ...

and pet tech’s newest disrupter. 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 ...