MB-2 Dual Function Mobile Boundary

The MB-2 is our most flexible mobile solution to keep your pet safe inside. This transmitter can be used either with or without a boundary wire. You can install the MB-2 with a wire to protect a large defined indoor area or you can use it without a wire for greater flexibility to protect smaller areas up to 13 feet in diameter (6 1/2 feet from center). Works with all DogWatch FM receivers.