Wireless dog fences are not only easy to use, but they are easy to install and are portable. Unlike the other electronic dog fences, there are no wires to bury. A wonderful purchase for those who take their dog everywhere they go, but are concern about keeping their pet safe. There are not many fences, especially with this kind of range, which you can take with you. Wireless dog fences will emit a radio signal that will create a circular boundary to the range you set it to. For multiple dogs or a wider range, you only have to get an additional receiver collar or an extra transmitter. If you are simple looking to keep your dog out of an area, rather than confined, there are systems designed for this purpose as well.