Havahart Wireless Custom Shaped Dog Fence System Wireless fencing for dog owners with customizable boundary for coverage up to 25 acres Digitally set exclusion zones (up to 4) and correction levels (tone-only + 5 static levels) Compact controller with intuitive touch screen; Web-based interface for Windows-based PCs Designed for any breed of dog older than 6 months and weighing more than 8 pounds Good for up to 2 dogs (additional collar required); backed by a 10-year warranty on parts (12 months for labor) Can be programmed to one of 5 different static levels and tone only corrections