Size 312 Premium Batteries for Tweak Focus/Basic Models


About the Product
  • 10 Packs of 4 (size #312) universal batteries/40 Batteries per box
  • Xcell label hearing aid batteries are made by Rayovac
  • Zinc Air, Mercury Free
  • Quality and battery duration is identical to Rayovac Proline or Extra Advanced Mercury Free
  • Compatible with all hearing aids and sound amplifiers that utilize #312 batteries
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