[ LED Magnifying Glass ] : With high quality, ultra-bright LED lights, the magnifying glass system also provides extra luminance to ensure an overall better reading experience, which is particularly helpful for people with macular degeneration or far-sightedness/feyopia. [ Features 3x ] : High quality distortion free large 7.5-inches by 5.6 inches lens; lets you view an entire page. [ Built-In Led Lighting ] : Comes completely assembled, just requires 4x AA batteries--not included. Once the batteries are added, the magnifying glass is ready to go, making it perfect for the elderly or those requiring an intuitive magnification system. [ Lightweight & Ergonomic Design ] : The unit itself only weights 6 ounces, and the grip of this LED magnifier is ergonomically designed for most hands,therefore, ideal for long reading time. [ Brightest & The Best Reading Magnifier ] :The brightness level peaks at 720 lumens, the brightest on the market, these LEDs are designed to last for more than 20 years without burning out or overheating.