Rayovac Extra Advanced, size 312 Hearing Aid Battery (pack 60 pcs) Rayovac Extra Advanced, size 312 Hearing Aid Battery (pack 60 pcs) Product Details BrandRayovac Extra AdvancedColorBrown TabSize312ManufacturerRayovacMpnIM312 Rayovac Extra AdvancedMade in U.S.A.World’s Longest Lasting BatteryLarger Tab DesignSize 312 pack of 60 batteries Check out my other items. -Powered by