The PetSafe Wireless Containment System allows you to create a secure 2,023 square metre circular boundary around your yard without the hassle of burying wire or installing a physical fence. To set up, simply place the Wireless Containment System transmitter in a weather-proof location, plug into an outlet and adjust the dial to cover the perfect size area for your dog. Coverage can be personalised from 1.5 to 27 metres in all directions from the base unit or up to 55 metres across. This portable system sets up in 1 2 hours so you can easily take it with you when you go camping or go on holiday. This Wireless fence comes with the PetSafe Wireless Pet Containment System Receiver Collar. The battery operated collar features a tone only mode for training plus, plus 5 adjustable levels of stimulation depending on your dog's temperament. The collar adjusts to fit neck sizes between 6-28 inches and is recommended for pets who weigh 3.6 kilos and up. With the purchase of additional PetSafe Wireless fence collars, the Wireless Containment System will contain an unlimited number of pets with a single system.ADD MORE THAN 1 PET: Unlimited number of collars can be added to the fence system and set to match your pets' personalities. PERSONALISE YOUR DOG'S COLLAR SETTINGS: Teach your pets to stay in the secure play area with a sound-only training mode plus 5 levels of static on his receiver collar. LONG BATTERY LIFE: The collar battery lasts up to 2 months before the low battery indicator alerts you to replace the battery uses the PetSafeRFA-67D-11 battery. WATERPROOF COLLAR: The waterproof collar comfortably fits dogs 3.6 kilograms and up and adjusts to fit neck sizes 6-28 inches compatible with all PetSafe Wireless Fence transmitters. SIMPLE SET-UP: Sets up in just a few hours this portable system is terrific for camping and holiday homes. STATIC-FREE REENTRY: Unlike traditional in-ground fences, this wireless fence allows your pet to return home without being corrected if your pet passes the boundary. NO WIRE TO BURY: A wireless boundary allows you to create a secure barrier around your garden to protect your pets without the time or hassle of burying wires. 2,023 M3 OF CIRCULAR COVERAGE: The adjustable circular range can cover up to 2,023 square metres from the placement of the portable indoor transmitter.