This video isn't sponsored or paid for, it's just my honest review and hope to help save others hundreds of dollars in the long run while doing their hidden fence research:

After months of research and analyzing the best hidden fence system, we decided to go with DogWatch for a plethora of reasons.
Cost savings: it's the same price if not more competitive than "Invisible Fence"
Longest Battery Life (2 years) vs just 2 weeks with the competitors. Another HUGE cost savings of a few hundred dollars a year!
Better technology: Patented Digital FM Technology (your dog won't be randomly shocked. It's a perfect system)
Lifetime Warranty
Professionally installed