Product material: ABS, acrylic lens Product size: 193 * 90 * 26mm Product magnification: 5x (large lens), 11x (small lens)Lens diameter: 75 mm (large lens), 19 mm (small lens) Power supply model: 1. Three AAA batteries (not included) 2. External USB power supply (included) Light source: eight LED lights Package includes: 1 x magnifying glass 1 x USB cable Good quality glasses The lens of the magnifier is reinforced and has a hardness of up to 5H, which increases the wear resistance. Provides a clearer picture magnification. Also included is a lens tissue that you can use to wipe the lens for a more professional, distortion-free lens. Handheld or Desktop Magnifying Glass These magnifying glasses can be used in two ways. Stretch the holder and place it on the desk as a desktop magnifier, fold the holders up to use them as a handheld magnifier too. Double magnification and adjustable stand 5 times magnification (500%) for the main magnifier with 11 times (1100%) bi-bocal lens for more details. The 3 rotatable joints make this LED magnifier steplessly adjustable so that you can position it for the perfect search result, or it can be folded into a handheld magnifier. Rechargeable and adjustable brightness levels This LED magnifier can be charged with a rechargeable battery (battery not included). Comes with a USB charging cable, just plug the cable into the magnifying glass and the other end into the adoptor and it will charge automatically. In addition, there are two levels of brightness that provide excellent light for illuminating detailed surfaces.