Applicable Models - The 2CR1-3N battery is compatiable with Pet Stop PCC-100/PCC-200 Series Receiver, Compatible with Dog Guard DG-3000, DG-5000, DG-9000 Series Receiver, Compatible with extreme PTPIR-003, PTPFS-003 Series Dog Collar Receiver. | High Capacity & Last Longer - 170 mAh battery capacity, which will make your pet collar receiver last longer | Best Replacement Battery - These batteries are not only suitable for dog collar receivers, but also function in the same way as the models below: 4LR44, A544, 28PXA, 476A, 4G13, PX28L, K28L, L544, L544BP, V28PXL, CR28L. | Packing List: 4 x 2CR1/3N batteries.