Hearing Aid Batteries are available in several sizes. Please select the correct one for your particular hearing enhancement device. Size 10 Custom-fit CIC Shell E.A.R. Mini-Canal Private Ears (mini-ears) Several Hearing Aids Size 13 Custom-fit Full Shell Electronic Earplugs SHS Standard Units Several Hearing Aids Size 312 Custom-fit Half Shell Several Hearing Aids Quick-Fit Units
