PowerOne Size 312 Hearing Aid Batteries - 30 count

A long service life with a guaranteed high cell voltage thanks to a patented cathode technology makes frequent battery changing redundant and promises the best sound., Each individual cell is tested for its electrical and mechanical characteristics in accordance with its specifications., A highly developed film seal for every cell guarantees that the battery does not dry out or drain prematurely., The stainless steel housing provides high-level stability and safe protection against corrosion.