Amazon Basics 60-pack Hearing Aid Size 312 Zinc-air Batteries, 1.45 Volt, Brown Tab, 4-year Shelf Life

IN THE BOX: 60-pack of 1.45-volt hearing aid batteries (brown tab, size 312). DESIGNED TO LAST: 4-year shelf life for reliable power when needed. EASY USE & STORAGE: Ships in Certified Frustration-Free Packaging. RELIABLE PERFORMANCE: Zinc Air technology delivers clear sound throughout the life of the battery. FOR BEST RESULTS: Remove the tab from the battery and let sit un-tabbed for one minute before inserting into device; this allows air to activate the formula in the cell and power up the battery. CAUTION: Keep batteries away from children. If swallowed, consult a physician at once. Ingestion may lead to serious injury or death. For information on treatment, call National Button Battery Ingestion Hotline 1-800-498-8666.