Features 1、Dimmable Light: The light source of the magnifier consists of 32 cool white LEDs and 16 warm LEDs, reasonably distributed into four rows of light bars laid out on the outside of the lens, with uniform illumination, high brightness, cold and warm light can be switched and mixed. 2、Adjustable Brightness: Adjust the brightness of the light through the potential, suitable for use in a variety of environments, find the most suitable brightness level for yourself, to avoid the visual fatigue brought about by too bright or too dark, enjoy a comfortable reading environment. 3、Quick Disassembly: When you need to remove the magnifying glass frame, just gently press the button, you can easily remove it from the telescopic pole. Not only is it simple and convenient, but it also effectively prevents damage to the product during the removal process. 4、Flexible Use: By inserting the magnifying glass frame into the telescopic pole, you can easily read it by hanging it from the neck, so you can easily view it without having to hold it in your hand. Can also be applied handheld, the flexibility of replacement at any time, so that you can according to different use of the scene and need. 5、Multiple Power Supply Options: You can choose to plug in the power to use, convenient and quick, without worrying about the problem of insufficient power. At the same time, we also support battery powered mode, convenient for you to use in outdoor or no power supply. Specification Item Type: Neck Wear Large Reading Magnifier Material: ABS, Acrylic Lens Size: Approx. 185 x 112mm / 7.28 x 4.41in Magnification: 5X Battery Type: 3 x AAA batteries (not included) Power Supply: 3 x AAA batteries or plug in use Package List 1 x Magnifier Lens 3 x Accessories 1 x USB Cable 1 x User Manual