I think that it does but it work much better on mellow dogs. But I would really ask a dog trainer about that because they know what they are talking about.
No
There are a few retailers that sale invisible fencing such as Dog Watch, Pet Smart, Discount Pet Supplies, Amazon, Home Depot, Lowe's, and Ace Hardware. Some specialists say that invisible fencing may not be the answer so one should be sure to do their homework on the topic.
Pet Stop offers a full range of quality, American-made electronic fencing and collars for animals. Pet Stop fencing is affordable and compatible with other invisible electric fence systems, including Invisible Fence.
Invisible fencing, typically consisting of a wire that creates a boundary for pets, is designed to be buried underground for optimal effectiveness and safety. Leaving it above ground can expose the wire to damage from weather, animals, or human activity, potentially compromising its functionality. Additionally, above-ground wires can pose tripping hazards and may be unsightly. For best results, it is recommended to install the fencing as intended, below the surface.
An invisible fence collar will work in another yard that has an invisible fence so long as the other yard is equipped with an invisible fence of the same brand. Since each brand works differently, the brand you are using may not work in a friend's yard.
you have to stay still or it doesn't work
Leon Paul London (online mostly) is a really great fencing store (a little expensive)
the invisible cheat does not work anymore because the cheat has been taken away.
to reach the sun
House-hold work is invisible because it cannot be seen by eyes, like the cooking of food.
A sword fight would be the simplest way to call it. Fencing is the verb.
Yes they can... if they want to