High-definition optical-grade lens: 3X and 45X all-optical glass lens, presenting high-quality images without distortion. Hard and scratch-resistant lenses ensure a lifetime of use. Perfect for enhancing every detail in books, newspapers, magazines, maps, electronics, miniatures, jewelry, medicine bottles. 3 LED lights provide good illumination: 3 ultra-bright, energy-saving LEDs provide significantly good illumination in low light conditions. Not dazzling! 2 LEDs for 3X lens, 1 LED for 45X lens. Battery not included: Lightweight handheld design: Sturdy ABS plastic design handle. The handle is comfortable and it weighs only 5.8 ounces. No more tired arms when reading for long periods of time. Very easy to use: add the battery and then you are ready to use it, and the LED light is controlled by a simple on/off button switch. This easy-to-operate magnifying glass is ideal for seniors and children.