Duracell LR44 Alkaline button batteries. They have up to 5 years of in-storage guarantee with Duralock Power Preserve technology so you can be confident these alkaline Button batteries will be ready when you need them.They are designed for use in toys, calculators and measurement devices. Voltage: 1.5V Type: LR44 (AG13/A76) Alkaline Button Cell Battery Card x 2