PetSafe Stay & Play Extra Wireless Fence Transmitter, Increase Your Existing Wireless Boundary

Smallest-Sized Transmitter - Our smallest and most compact transmitter conveniently sits on tabletops or countertops inside your home 3/4 Acre of Additional Coverage - Create an additional circular-shaped wireless boundary up to 3/4-acre (22-105 ft in diameter)  LCD Display - The display shows you how far your pet’s play area expands; the screen also has warning indicators to let you know if there is an error with the wireless fence system  Portable - Take this compact, portable fence with you when you and your dog go camping or travel in your RV (outlet required)  Extra Receiver Collar Not Included - With the purchase of additional receiver collars, this wireless fence allows you to safely contain an unlimited number of pets  Compatible Fences - Stay & Play® Compact Wireless Fence, Stay & Play® Wireless Fence for Stubborn Dogs, Stay & Play® Wireless Fence with Replaceable Battery Collar or the Wireless Pet Containment System