- The world's longest lasting mercury-free hearing aid battery.
- Rayovac provides the optimal energy solution for almost every device. With world-class manufacturing techniques and continual quality testing and improvment, you'll be assured of the highest product performance in each and every battery.
- Rayovac's zinc air cell design provides precision air flow, maximizing power and maintaining performance.
- Models 10, 13, 312 are made in USA, model 675 is made in the UK
