Digital Foci Pocket Album 1.5-Inch Keychain Digital Photo Viewer (Silver) Holds up to 74 digital photos with 8MB internal flash memory Runs on Lithium-ion battery with up to 9 hours of battery life 1.5-inch color LCD screen; LCD contrast adjustable for choosing optimal viewing angle Run automatic photo slideshow or scroll photos manually; Built-in clock with automatic on/off timer Photo Viewer Software included for converting JPG & BMP images from you computer to Pocket Album (compatible with Windows Vista/XP/2000, Mac 10.3 & 10.4.)