Choosing the Focal Length Please hold an item 9-12 inches away from the LED magnifying glasses before using them. Adjust the focus until the thing is in focus.1.6X MagnificationNot only are they safety glasses, but they also have a magnifying feature. The portable magnifying glasses provide a magnification of up to 1.6x, ensuring clarity and detail when reading books, documents, newspapers, or directions. Magnifying Glass With LightMagnified lenses allow you to see clearly, and bright led lights on each side of the frame can aid with your vision.Reading in bed or working on arduous DIY projects has just gotten a whole lot easier, and it improves visual clarity during close work jobs. Hands-free magnification glasses assist to boost productivity and visual precision during routine close work activities. You may wear them like regular glasses. Universal Android type USB connector, we offer a Micro-USB, locate a computer or USB power converter (not included), you may recharged anywhere. Please charge it before using it. If it does not function, please contact us right away. (Seller’s Note: Box has been opened and is damaged)