10 Product Specific batteries required. (included)

Make sure this fits by entering your model number. [Premium Quality Replacement] Equivalent to PetSafe Model RFA-67 collar batteries. 10-year shelf life. No mercury and Cadmium. [Compatibility] 100% compatible with PetSafe RFA-67 RFA-67D-11 batteries; never popping out or falling out from the collars.