When your pet tries to cross over the invisible fencing, it will receive a tiny electrical shock via its collar. Over time, the animal will learn where the borders of your property are. The amount of electrical shock can be adjusted, depending on the size and age of your pet.
Invisible fence kits typically come with a manual, 500 feet of wiring, flags to show fence boundaries, a collar, a transmitter, a receiver and splice caps. You will have to pay for any additional collars ($55 to $130 each), which need to be replaced every few months, and for extra wiring (around $23 for 500 feet). A lightning protector may be a necessary purchase if you live somewhere that experiences a lot of thunderstorms.
You can install the invisible fencing yourself or hire a professional to set it up for you. Do-it-yourself kits cost as much as $350, while hiring a professional can set you back as much as $1,500, according to Costhelper.com.