The electric dog collars have so-so effects even on the highest settings. If a dog is determined to do something, it will ignore the static shock bursts. Now, with that said, there are electric dog collars that have remotes so you can control the bad behavior and apply verbal correction. This has a better method since it's trained and reinforced.
Using the wireless electric dog systems is by far the better way to go. You can set the zone and even move the system/zone where you want it vs. any underground setup that isn't flexible. PS, buy the unit that has the farthest range. The unit can dial in a smaller zone if needed, but a limited unit can't dial up to a larger zone. Just an FYI there. Dad read plenty of reviews and talked with people that had underground wire and the wireless. The remote unit is the best with a full wireless free roaming zone for the dog. There have been times when the collar wasn't placed on the dog as my siblings let him out and the dog stayed within the zone for a half day unit it was realized.
