Features 1. The two main lenses have different magnifications, 1.5x and 2.0x respectively. If only the front lens (1.5x) is needed for general observation, the rear lens can be flipped up and folded away. For closer inspection of small objects, use the 2.0x rear lens with the front lens flipped up. Both lenses can be used together to achieve a 3.5x magnification effect. 2. The rear lens is replaceable and comes with four additional lenses: 2.0x, 2.5x, 3.0x, and 3.5x. These allow for various magnification combinations when used with the front and small secondary lens, enabling up to 13x total magnification. 3. Equipped with 3 LED lights that provide large and uniform illumination. Two brightness levels (high and low) accommodate different lighting needs and help reduce eye strain. Independent lens design allows unused lenses to be folded up when not in use, increasing focal length and improving comfort. 4. Includes a lens storage box for safekeeping of unused lenses, helping maintain cleanliness and portability. The widened lens design features a U-shaped cutout in the middle and lower section, allowing the lens to sit closer to the eyes, enhancing field of view and making close-up observation and reading easier. 5. Features an adjustable wheel on the headband for easy tightening and secure fit, ensuring comfort during extended use. Includes an angle adjustment mechanism for fine-tuning while wearing. Built-in rechargeable battery provides up to 8–12 hours of continuous use on a full charge, eliminating the need for frequent battery replacements. Specification Condition: Item Type: Glasses Magnifier Material: ABS, Acrylic Lens Lens Combination Magnification and Focal Length Comparison Table: Lens Type – Magnification – Focal Length Front Lens – 1.5x – 330mm / 12.99in Rear Lens (Replaceable) – 2x – 250mm / 9.84in Rear Lens (Replaceable) – 2.5x – 200mm / 7.87in Rear Lens (Replaceable) – 3x – 165mm / 6.5in Rear Lens (Replaceable) – 3.5x – 142mm / 5.59in Small Secondary Lens – 8x – 62mm / 2.44in Lens Combination (Front Lens + Small Secondary Lens) – Combined Magnification – Combined Focal Length 1.5x + 8x – 9.5x – 52mm / 2.05in Lens Combination (Front Lens + Rear Lens) – Combined Magnification – Combined Focal Length 1.5x + 2x – 3.5x – 142mm / 5.59in 1.5x + 2.5x – 4x – 125mm / 4.92in 1.5x + 3x – 4.5x – 110mm / 4.33in 1.5x + 3.5x – 5x – 100mm / 3.94in Lens Combination (Front Lens + Rear Lens + Small Secondary Lens) – Combined Magnification – Combined Focal Length 1.5x + 2x + 8x – 11.5x – 43mm / 1.69in 1.5x + 2.5x + 8x – 12x – 41mm / 1.61in 1.5x + 3x + 8x – 12.5x – 40mm / 1.57in 1.5x + 3.5x + 8x – 13x – 38mm / 1.5in Battery: Built-in lithium battery (up to 8–12 hours of continuous use) Size: Approx. 285 x 213 x 60mm / 11.2 x 8.4 x 2.4in Lighting Source: 3 LED lights (adjustable in four directions) Use: Suitable for tattooing, eyelash application, beauty treatments, reading, tool repair, watch repair, and other precision tasks. Package List 1 x Glasses Magnifier 1 x 2.0x Lens 1 x 2.5x Lens 1 x 3x Lens 1 x 3.5x Lens 1 x Lens Cleaning Cloth 1 x USB Cable 1 x User Manual