CMOS sensor: 100k Pixels Built-in retractable optical viewfinder: to frame your photos. LCD control panel: Indicates number of pictures remaining, High/low quality status, Continuous shoot mode, Auto-shoot mode and delete all images. Webcam function FREE carry pouch FREE Ulead PhotoExpress Software FREE USB cable Dimensions: 58mm x 41mm x 20mm Weight: 40g (very, very light indeed). Requires 1 x AAA battery. System Requirements: Windows 98/2000/Me/XP, 32MB RAM, USB port, CD-ROM Drive