Pentax Optio 43WR 4MP Water Resistant Digital Camera with 2.8x Optical Zoom 4.23-megapixel sensor captures enough information for photo-quality 11-by-15-inch prints 2.8x optical zoom, 4x digital zoom (11.2x total) Waterproof design, can be immersed in water up to 3 feet for 30 minutes Stores images on SD memory card Powered by one CR-V3 or 2 AA batteries