- Kit contains: 80 Rayovac Size 13 hearing aid batteries
- Air zinc type, voltage 1.45V, capacity 310 mAh and mercury-free
- Battery that guarantees reliability and constant performance, providing lasting power for even the most modern and demanding devices
- Designed for greater cell stability over a wide temperature range, Sound Fusion technology provides even more consistent power
- Optimised material concentration and innovative mixing method improve anodic efficiency and help get the most out of each individual stack