Electric Fence for Dogs, 2-in-1 Wireless Dog Fence System, Wireless Dog Fence...

Using advanced 2.4GHz signal technology, it ensures stable and accurate signal transmission, even through walls. Advanced Wireless Electric Fence Mode: In wireless fence mode, the electric dog fence wireless creates a radial-shaped boundary with adjustable levels (1-6), covering a range from 50 to 990 feet.

eBay