With its built-in 3.5 LCD screen, this digital microscope is easy to use and doesn't have to be plugged into a PC or laptop. Superb image sharpness thanks to 5-megapixel camera, 8 LEDs and adjustable focussing. Up to 500X magnification thanks to 4X digital zoom. Photos and videos can be saved and viewed on a PC or TV. Li-ion battery for portable use. The software, featuring a calibration function for exact measurement for enlarged objects, is quick and easy to install. Ideal for a whole host of uses, whether for study, school, or leisure, and enables detailed observation of stamps, coins, banknotes, minerals and more. Suitable for all current computers.