Exclusively from PetSafe! The
PetSafe wireless instant fence sends a signal to a collar that your dog wears. As your dog nears the boundary you defined, the collar issues a warning tone. If he proceeds further, he receives a safe but annoying stimulation that deters her from leaving your boundary. There are no wires to bury, just plug the transmitter into an electrical outlet close to the area where you want to contain your pet.
The system is portable, so you can bring it with you. An unlimited number of pets can be added to the wireless pet fence system as long as they wear the PIF-275 Receiver Collar.