Duracell Power One Size P312 Batteries - 4 Pack (60 Batteries Total) - Long-Lasting Alkaline Button Cell Batteries for Watches, Calculators, Medical Devices & Small Electronics

Power One

Will not rust like all other hearing aid batteries that are made out of Tin

Top of the line hearing aid batteries in the Comfort Pack

All Power-One batteries are subjected to strict safety and quality checks

Long Lasting, Mercury Free