brand new and high quality Features: Built-in 8 LED lights, digital microscope adjusting knob can change the focu s and brightness. for HD Color CMOS Sensor, 24bit DSP, Super Resolution 640x480 To 1600x1200, 5X Digital Zoom, contains digital measurement software and calibration ruler, for USB 2.0 & USB 1.1. It is a slim type tool and can be easily used in different fileds, including: 1.Textile industrial for textile inspection 2.Printing inspection 3.Industrial inspection: PCB, precision machinery... 4.Educational purpose 5.H examination 6.Skin examination 7.Microbiological observation 8.Jewelry&coin inspection 9.Visual assistance ect. Specification: Magnification ratio: 1600x Power source: 5V for DC from USB port USB port: Support USB 2.0& USB 1.1 Light source: 8 LED(adjustable by control wheel) Photo format: JPEG or BMP Magnification: 1600X Static resolution: standard 640x480, maximum 1600x1200 Zoom: 5-segment for Focus range: from 10mm to 250mm Material: Plastic Color: Black Size: 120x159x163mm/4.7x6.3x6.4inch Operation system: for Windows 7/Vista/XP Quantity: 1 Set Note: 1.Please allow 0-1cm error due to manual measurement. pls make sure you do not mind before you bid. 2.Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you 3. 3.If your computer does not have a CD-ROM slot, please contact us to send a driver. Package includes:(with retail box) 1 Set 1600X 8LED USB Digital Microscope 1 Set bracket 1 x Driver CD 1 x Calibration ruler