Keep your best 4-legged buddy safe and protected at home with the PetSafe® Wireless Pet Containment System. This rechargeable fence system is completely wireless, and works in tandem with a waterproof receiver collar. Centered around a small, portable unit you can set up in your home, garage, shed, or any other indoor space with an outlet, this system can be adjusted to cover as much as 1/2 acre (90 radial feet). Easy to set up system takes just 1-2 hours to set up and comes with 50 training flags to help your dog learn the system's boundary more quickly. Powered by a PetSafe RFA-67 battery (included), the system's waterproof collar features 5 levels of static-type stimulation correction and a tone-only function to teach your pet(s) their limits quickly. Collar also features an automatic safety shut-off feature that stops correction after 30 seconds. Accepts additional collars (not included) for multiple pets and additional wireless transmitters (not included) for a larger containment area. Also works with Stay+Play Wireless Fence® and Stay + Play Wireless Fence receiver collars (not included). Includes: wireless unit, collar, long contact points for long-haired dogs, test light tool, operating and training guide, and 50 boundary training flags. For dogs 8 lbs and up; Receiver collar fits neck sizes 6-28". Manufacturer model #: PIF-300. Wireless pet containment system - portable, no buried fences. Wireless transmitter with power adapter - set up anywhere inside with an outlet. Adjustable - covers up to 1/2 acre. Easy setup - just 1-2 hours. Waterproof collar - 5 levels of static-type stimulation correction and a tone-only function. Automatic safety shut-off. Accepts additional collars (not included). Expands with additional wireless transmitters (not included)