Description 2-pack of batteries for many PetSafe® Containment, Bark Control and Remote Trainer collars. Compatibility Compatible with many PetSafe® Containment, Bark Control, and Remote Trainer collars: Deluxe Bark Control Collar (PDBC-300-20) UltraLight Ultrasonic Bark Control (PUSB-150-19) Bark Control Collar (PBC19-10765) In-Ground Fence (PRF-3004W-20) In-Ground Fence (PIG00-13661) Ultralight Add-A-Dog® Extra Receiver Collar (PIG19-10761) Deluxe Ultralight Add-A-Dog® Extra Receiver Collar (PIG19-10764) Wireless Pet Containment System (PIF-300-21) Wireless Pet Containment System Add-A-Dog® Extra Receiver Collar (PWF19-10762)