The Basic Duo features two card compartments in which CF, SD, MMC, Memory Stick or Smart Media memory cards can be safely stored. It ideally fits smaller digital cameras, mobile phones with integrated camera and other multimedia devices. The Basic Duo is waterproof, protects against humidity and static charge and has two practical viewing windows. If dropped into water, it automatically floats to the surface. Neckstraps can be fixed at the Basic Duo s connector, enabling users to carry it wherever they go: on holiday, downtown, skating or biking.