PetSafe Stay + Play Wireless Fence, Covers up to 3/4 Acre, for Dogs and Cats over 5 lb, Waterproof and Rechargeable, with Tone and Static Correction WIRELESS BOUNDARY - keep your pets safely contained in your yard without having to dig or bury wires COVER UP TO 3/4 ACRE - adjustable range up to 105 feet in all directions from the indoor transmitter ADD AN UNLIMITED AMOUNT OF PETS - with the purchase of additional compatible PetSafe Wireless Receiver Collars you can safely contain as many pets as you need. Designed for pets 5 pounds and more with neck sizes 6 to 28 inches. 5 LEVELS OF CORRECTION - plus tone-only mode for training. Train your pet in 2 weeks when used as directed RECHARGEABLE ERGONOMIC COLLAR - each charge lasts up to 3 weeks per charge depending on frequency of use, then quickly charges in only 2-3 hours PORTABLE WITH EASY SET UP - sets-up in 1-2 hours that is perfect for RV camping and vacation homes. Operating range may be affected by a variety of factors including terrain, topography and metal objects. The Pet Area cannot be changed into a square or rectangular shape Call, chat or email with our expert PetSafe US-based customer care specialists six days a week; They are waiting to assist you and your pet with your product needs at 1-800-732-2677 or by email at ccc3@petsafe.net Manufacturers warranty is only valid when purchased from an authorized retailer. Refer to the PDF attached below for User Manua and Troubleshooting steps