Phonak batteries type 312

Phonak batteries excel in maximum life, as well as due to their high and stable voltage, they provide excellent sound performance in digital and analog hearing aids. The comfortable packaging, with the practical rotating package, allows the easy removal of each battery. Zing-air batteries use the outside air as a source of energy. The self-adhesive safety tape keeps it for up to 4 years until you use it. To activate the battery, simply remove the adhesive tape. After removing it, wait about a minute before inserting it into your hearing aid. Replacing the safety tape after removing it will not extend the life of the battery.