World's No. 1 long-lasting dry battery, which has also been recognized by the Guinness World Records!Recommended use period 10 years!For boomboxes, cameras, IC recorders, watches, and flashlights.Reliable long-lasting performance.Safe long-term storage.Batteries that last longer and can be stored for a long time.Universal design considering safety.Model: AA type (1.5V).Shrink packaging with 4 pieces