The Duracell LR44 is suitable for a range of small electronic equipment including calculators and power photo equipment. Duracell offers a wide range of specialty batteries. For long lasting power use Duracell in all your important devices. Duracell is the world's leading producer of high-performance batteries. Duracell believes there is no limit to the potential of portable power and it always strives to find innovative and efficient ways to power your life.