AA + AAA IN ONE PACK: The two most-used battery sizes in American homes, combined in a single re-closable pack. Powers TV remotes, toys, keyboards, flashlights, thermometers, and more. • 12-YEAR STORAGE GUARANTEE: Every battery in this combo pack is guaranteed to last 12 years in storage. Stock up with confidence. • POWER BOOST INGREDIENTS: Both AA and AAA batteries contain Duracell's exclusive POWER BOOST Ingredients, delivering dependable, long-lasting performance in your everyday devices. • ORGANIZED STORAGE: Re-closable pack keeps your AA and AAA batteries separated, accessible, and neatly stored. • HOLIDAY AND EMERGENCY READY: Stock this combo pack before Christmas morning or storm season. With 56 batteries across both sizes, your family's devices will stay powered.