Details: Rayovac are a premium solution for advanced hearing aid devices. No size 13 hearing aid battery lasts longer on ANSI &amp; IEC performance tests. That's a performance you can trust! These orange tab deliver peak performance for advanced features like streaming video, audio, and phone calls. The packaging is the most advanced ever from Rayovac, too. Long, wide tabs make handling these size 13 batteries easy. Plus, these orange tab have a front-facing door making it easier than ever to remove a single battery. The zinc-air technology delivers clear sound throughout the entire life of the battery. You can trust the 4-year shelf life to ensure powerful performance for the entire package of 16 batteries.Size 13, 18 Battery Pack No hearing aid battery lasts longer** Lasts up to two days longer than our previous formulation+ Mercury-Free ? Friendly for the environment

Rayovac Size 13 Hearing Aid Batteries, 18-Pack 13-18