I was having a huge issue w/my dogs trying to dig out of the back yd but I did not want to go through the trouble of stringing out the wire and it only seemed like a temporary fix. In short, the petsafe wireless fence solved all my issues! I was able to put the collar on a low setting and adjust the electic barrier to exactly where I needed it to me. Within about 2 months, my dogs stopped digging. The only negative point regarding this product is the batteries have a very short life and are around 10 bucks for 2. Otherwise, the product is mobile so it's as simple as unplugging it and moving it to the next spot. Excellent product.