Radio Systems RFA-18 (6 Volt) Alkaline Battery for use in: PLDT-300 Little Dog Remote Trainer Receiver and PIRF-300 Indoor Radio Fence by Petsafe. 1 per package.Petsafe RFA-35-11 (3 Volt) Lithium Batteries for use in: UL250 collar/receiver. Battery life is 3-6 months. 2 per package.PetSafe RFA-67D-11 (6 Volt) Battery Module for use in: PetSafe containment and training systems including training collars. 2 per package.







