PetSafe Wireless Fence Extra Transmitter Litter Boxes Each battery lasts about 1

Each battery lasts about 1 month and has a 5 year shelf life

Encloses 10 square feet

Waterproof and submersible to 10 feet

Adjust range from 2 - 12 feet

For indoor use only - water resistant

PetSafe Wireless Fence Extra Transmitter Litter Boxes Each battery lasts about 1Expand Your Wireless Fence System. Set up overlapping circular fields to give your pet greater room to roam. Requires use of a PIF 275 Wireless Fence Receiver Collar (sold separately). Features: Covers an adjustable circular area up 1 2 acre (180 feet in diameter). Completely wireless portable. Locate indoors 2 to 4 feet above ground level. Includes AC Power Adaptor. Transmitter Specs: Height: 9", Width: 9", Depth: 8. 5", Rounded front, or barrel