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Signia Size 312 Hearing Aid Batteries – Pack of 7 Strips (42 Batteries Total)Signia 312 hearing aid batteries are high-quality, mercury-free zinc-air batteries designed for reliable and long-lasting power in digital hearing aids. Manufactured by WS Audiology (Sivantos GmbH, Germany), these batteries provide stable voltage and leak-resistant performance, ensuring clear sound and device safety.This pack includes 7 strips, each with 6 batteries, totaling 42 batteries, making it an ideal choice for regular hearing aid users looking for long-term supply and trusted performance.