HSA/FSA EligibleRayovac s most advanced hearing aid battery yet*.
previous Rayovac design (excludes size 675) 4vs. previous Rayovac design 5Reported by size 312 users in 2017 field study (varied by device and use, excludes size 675) 6Proudly made in Portage, WI, with US and global parts. rayovac. Rayovac Hearing Aid Battery, 312, 24 ct | CVS 3vs.