PetSafe RFA188 Collar Battery Educator Collars You might need the Stay

You might need the Stay and Play Wireless Fence Stubborn Dog Extra Receiver Collar

99 Adjustable Levels of  Static Mode

1 x AC Adapter

it will give a harmless static correction that is adjustable up to 5 levels just enough to get your dog's attention and encourages him to go back to the safe zone

PetSafe RFA188 Collar Battery Educator Collars You might need the Stay*This item is not part of the 10% off sign up offer PETSAFE RFA 188 BATTERY The RFA 188 Battery is a replacement for certain PetSafe fence collars and bark collars. It is a built in battery and comes as a module this will break once removed from the product. A 3 volt battery that lasts about 1 month and has a 5 year shelf life. The battery keeps your dog training products in excellent shape and achieves the best results for your dog's training. Works