Long lasting zinc-air batteries in a rust proof stainless steel case. Top of the line German made batteries.
Long lasting zinc-air batteries
Rust proof stainless steel case
Will not rust like all other hearing...
These are the top of the line batteries from Rayovac, with up to a 4 year shelf life and guaranteed freshness. Rayovac Proline are only sold through Audiologists and Hearing Aid Dispensers. According to...