PetSafe Wireless Fence Extra Transmitter, Increase Your Existing Wireless Fence Boundary

Expand Your Boundary - Increase your pet's play area with an extra transmitter. Transmitters boundaries need to overlap 30 ft. Portable - No wire to bury Adjustable - Circular boundary up to 1/2 acre Easy Set Up - In as little as 1-2 hours Collar Sold Seperarely - Requires a PetSafe® Wireless Fence Receiver Collar to operate Item does not work with mobile homes, structures with metal siding or structures with metal roofsYou may also like PetSafe Pawz Away Indoor Wireless Pet Barrier Transmitter, Extra Add-A-Barrier for Dogs & Cats.