Showcasing a specially formulated operating mechanism, the Duracell AAA2-PK Alkaline Battery recreates stunning input power for toys, remote controls, flashlights, calculators, clocks, radios, wireless mics, keyboards, and other portable equipments. It is powered by a high voltage supply, which boasts of the copper top technology. This technology is also devoid of the troublesome memory effect. Even though the AAA2-PK works well with most of devices it is particularly suited for toys and clocks.