Handheld Electronic Microscope 500X USB Magnifier for Laptop Computer Features: This microscope supports USB that allows to be used with computer, laptop. It has 500X magnification, and supports focusing adjustment. Designed with LED light, optical lens helps to see clearly. Comes with a holder platform for convenient operation. Widely used for industrial PCB checking, jewelry appraisal, detecting, etc. Specification: Magnification: 50X-500X Lens Construction: 2G+IR LED: 8pcs Focusing Adjustment: Manually adjust, 0-40MM Imaging Distance: 3MM-infinite Video Record Format: AVI Video Resolution: 720*480, 640*360, 480*272 Picture Format: JPG Working Range: 0-10M Working Time: >90min Power Supply: 800MAH built-in li-ion battery Charging: DC5V 1A USB Working OS: For Windows, XP, win7, win10(32, 64bit), for mac os*10.5 or above (support USB UVC protocol equipment) Weight: 250g / 8.8oz (approx.) Package list: 1 * Microscope 1 * Holder 1 * CD 1 * Ruler