The 3B Scientific W64061 iPhone-attachable, pocket-sized microscope lens is compatible with the Apple iPhone 4, has LED illumination, telescopic zoom and focus dial functions, and 60 to 100X digital magnification. A microscope lens enhances the resolution of an object or image, and is commonly used for inspection purposes by hobbyists and professionals in extracurricular, watch-making, jewelry, model-making, and engineering applications. This compact, portable microscope connects to the iPhone 4 and displays a magnified, 3-cm, circular image on the iPhone 4 screen. Built-in bright white LED illumination provides enhanced viewing. The microscope lens body screws into the provided iPhone protection case with an attached threaded screw. In addition to the iPhone case, the device comes with a protective pouch with a draw-string closure, a cleaning cloth, and instructions. It operates with three LR1130(F) batteries, measures 36 x 26 x 30cm, and weighs 0.031kg. Microscopes are instruments used to enhance the resolution of an object or image. Types include compound, stereo, or digital. Compound microscopes use a compound optical system with an objective lens and an eyepiece. Stereo microscopes show object depth in a three-dimensional image. Digital microscopes are used to display an image on a monitor, rather than looking through a lens. They can utilize LED, fluorescent, and mirror light sources to help control viewing capabilities. Microscopes are widely used in education, lab research, biology, metallurgy, engineering, chemistry, manufacturing, and in the medical, forensic science, and veterinary industries. American 3B Scientific manufactures educational material for scientific, medical and patient education, including human anatomy models, simulators and trainers, and teaching aids for the science and health education, health care, and physics industries. Headquartered in Atlanta, GA, American 3B was founded in 1995, and is partnered with international 3B Scientific companies. Whats in the Box?