Whether your dog is rolling on his back in the grass or playing a game of fetch, the PetSafe Stay & Play Compact Wireless Fence gives your best friend freedom to safely enjoy playing outdoors. With this wireless fence, you can create up to a 3/4-acre circular boundary. An LCD screen displays how far your pet’s play area expands and lets you know if there is a warning or error with your fence. Place the transmitter indoors, plug into an outlet, and setup your new wireless fence in as little as 1-2 hours. If you enjoy camping or traveling in your RV with your dog, take this portable wireless fence with you wherever you go. This fence comes with a rechargeable PetSafe Stay & Play Wireless Fence Receiver Collar. If you have more than 1 pet at home, simply purchase as many additional receiver collars as you need so all of your pets can use the same wireless system.Kit includes:Transmitter with power adaptor (Power adaptor images for reference only, actual adaptor appearance may vary)Receiver with adjustable collarReceiver chargerPetSafe rechargeable Li- ion battery; non replaceable50 training flagsTest light toolLong contact pointsContact point wrench