Product Title: Stay & Play® Wireless Fence with Replaceable Battery Collar Product Description: Description Giving your dog a fenced-in play area doesn’t have to be expensive or complicated. The Stay & Play® Wireless Fence with Replaceable Battery Collar lets you create a secure play area without spending time burying wires and without the high cost of building a physical fence. This transmitter creates a circular, wireless boundary that covers up to a 3/4-acre area. What makes this fence great is that since it’s wireless you can take it with you anywhere. Pack it in your RV when you take the whole family camping or bring it to the vacation rental for a long weekend to give your best friend a secure place to play wherever you go together. This wireless fence kit comes with a waterproof, battery-operated receiver collar that is ergonomically designed to be comfortable for your pet to wear. Choose from 5 adjustable levels of static correction to find the right level for your pet, plus a tone-only mode which warns your pet with a beep when they approach the boundary. This fence works with an unlimited number of receiver collars which means that you can purchase additional collars for every dog or cat in your family. With a little training, patience (and some treats too) your dog will soon learn their new wireless boundary area. Your dog deserves the best outdoor playtime. Trust PetSafe® to keep your pet healthy, safe and happy. Features Contain your dog without building a fence or burying wires Circular boundary adjusts to cover a 3/4-acre yard (5-105 ft in all directions) Sets up in 1-2 hours Portable for when you travel (outlet required) Includes 1 Stay & Play® Wireless Fence Replaceable Battery Receiver Collar Tone-only mode and 5 levels of adjustable static correction Waterproof collar adjusts to fit neck sizes 6-28 in Purchase additional receiver collars for all of your pets Receiver collar requires 1 RFA-67 battery, included Battery lasts about 1-2 months depending on how often you use the collar Our static collars are part of our ongoing mission to provide the best tools, education and support for pet parents seeking safe, effective, expert-recommended options they can trust to meet each dog’s unique training needs System Includes Transmitter with power adaptor Waterproof receiver with adjustable 3/4" collar strap 6-Volt battery (RFA-67) Test light tool 50 boundary training flags Short and long contact points Contact point wrench Mounting bracket and hardware Product manual