240 x Size 312 Rayovac Extra Advanced Hearing Aid Batteries Specifications: Volt: 1.45v Size: 312 Chemistry: Zinc Air Mercury Free Brand: Rayovac Quantity: 240 Pcs (40 x 6 Card) Equivalent Batteries: A312, 312A, 312AE, DA312, 312HPX, AC312, P312, PR312H, ZA312, PR41, B3124, B347PA, DA312H, DA312N, 312HP, AC312E, AC312EZ, ME7Z, L312ZA, W312ZA, S312A, 312SA. Made in the USA. Product Details BrandRayovacProduct TypeHearing Aid Batteries 240 x Size 312 Rayovac Extra Advanced Hearing Aid Batteries Check out my other items. -Powered by