Best reading assistant Adjustable headphone amplifier for seniors, amateurs and professionals with 8 groups transparent lenses. Includes 16 lenses in total:8 groups interchangeable lenses (2.5x 4x 6x 8x 10x 15x 20x 25x).Humanized dressing style Wearing method-two wearing methods of glasses frame and headband. Headbands can be used instead of spectacle frames to avoid falling and reduce the pressure on the nose, thereby extending the use time and reducing fatigue.Ergonomics The ergonomic lightweight frame with soft padding can fit all head sizes. Not only can the headband be adjusted to fit your reading glasses, but it can also ensure a more comfortable and tight fit.specification:-Material: ABS plastic, acrylic optical lens-Weight: 277 grams-Size: 210 150 60mm-Magnification: 2.5x 4x 6x 8x 10x 15x 20x 25x-Light source: 2 LEDsIf you have any questions, please feel free to contact us so that we can provide you with the best service.[100 guarantee] If you have any questions, please contact us, we will contact you in time. [Good gift] An ergonomically lightweight frame with soft padding can fit all head sizes. Reading magnifying glass can greatly improve vision. Therefore, providing your parents or grandparents with a good gift that can extend aging eyes is also a great choice for these people. Depressed or disabled person. ?With 2 super bright LED lights?The illumination of the magnifying glass can ensure a large uniform illumination area. Their lighting to meet different lighting requirements. Three LR1130 batteries. [Two ways to wear] Two ways to wear glasses frame and headband. Headbands can be used instead of spectacle frames to avoid falling and reduce the pressure on the nose, thereby extending the use time and reducing fatigue. Comfortable and lightweight frame with soft padding, suitable for all head shapes. [8 groups interchangeable lenses] The head-mounted magnifier includes 8groups interchangeable lenses (2.5x 4x 6x 8x 10x 15x 20x 25x). Lenses with different magnifications can meet your various needs, such as: electrician, jewelry business, beauty, painting and the elderly.