The product is a pack of Energizer Max "D" single-use batteries, totaling 6 batteries across 3 packs. The batteries are classified as type D with an alkaline chemical composition, suitable for use in low drain devices. Energizer is a well-known brand in the consumer electronics and multipurpose batteries & power categories, providing reliable power solutions for various devices. These batteries are designed for convenient use in devices that require a steady supply of power, making them a practical choice for everyday electronics. π10 year shelf lifeπ πPackages have shelf wearπ