3x Zoom - plastic: PVC lens, Fresnel lens, not glass, please buy carefully. The foldable handheld magnifier can be magnified 3 times to ensure your clarity and detail and is ideal for reading books/documents/newspapers/instructions. Get 12 LED Magnifier: You will get a powerful LED magnifier with two different power modes, as well as an LED lamp for lighting in dark places. Multiple ways of reading are available: our rectangular magnifying glass can be hung on the neck, or you can turn the four corners to stand on the document for a free experience. If you don't want to, it can also be held in your hands. Easy to read: Our full-page magnifier provides a larger reading area and allows you to read the whole page, which reduces the difficulty of moving multiple times during playback. Dual USB and Battery Power: This magnifier is different from others because it can be used in battery and USB mode. You can adjust the brightness of the LED to protect your eyes in the dark. The power cord must always be plugged in to turn on the light. If there is any looseness, insert it firmly.