40x to 1000x40x to 1000x Magnification2 in 1 USBUSB and Micro USBBuilt in 8 LEDEmbeded in 8 SMD LEDs (dimmable) with brightness adjustment control to improve images qualityAdjustable StandEasily analyze the surface of objects large and small at any angle by positioning the flexible gooseneck precisely where you want it.More applicationsBeauty: skin and hair inspection.Education: show your boys and girls the beautiful micro world.Hobbies : inspection for butterfly specimen, stamp or coinsIndustry and other : For textile, PCB, Jewelry microbiological inspectionNote:Focus Wheel can be used on ALL devices. But SNAP and ZOOM button can only be recognize on window system as the software was wrote by our company, and android APP (mac system doesnt need software) is common in the market so it cant recognize the SNAP and ZOOM command.Remove Lens Cap when useRemember to take the lens cap off otherwise you will end up focusing on the plastic cap as shown below. It is fairly obvious if this is the problem as moving the microscope will only change the light levels not the image.Parameters:Focus Range: from 10mm to 250mmFrame Rate: Max 30f/s under 600 Lus BrightnessMagnification Ratio: 40x to 1000xVideo format: AVIPhoto format: JPEG or BMPLight source: 8 LEDOperation system: Windows 7 8 10/Vista/XP/2000, Mac OS X 10.5 or above, some of Android mobiles,