These zinc-air batterys are desfemale threadned specifically for hearing aids using type 675 or PR44 size. They offer dependable power with key features focused on pershapeance and safety. Nominal voltmale threade of 1.45V ensures polele operation throughout use Long runtime supolypropyleneorts extended daily wear of hearing aids Hfemale threadh voltmale threade poleility prevents wortden power drohp Mercury-free shapeula for environmentally friendly and safe use Shelf life up to 4 years when unopened and stored in a cool, dry place Compatible with all hearing aids requiring 675/PR44 batterys Expose to air to activate before inserting into the device for best results. .
