Interchangeable Acrylic Lenses: 3 acrylic lenses with different magnifications (1.5X, 2.0X, 2.5X). You can achieve 3 additional magnifications (3.5X, 4.0X, and 4.5X) by combining 2 lenses. The front lens can be flipped up. When not using a two-lens combination, you can flip the front lens up without removing it. Adjustable Brightness Levels: Features two brightness levels: bright light and dim light, providing excellent illumination for surfaces. Two brightness levels are available by pressing the power button. The angle of the light is also adjustable to suit the current task. Rechargeable Batteries: This magnifying glass can be fully charged in 1 hour. Simply connect the USB cable to the magnifying glass and the other end to a USB power source (e.g., a USB wall charger, mobile phone charger, or power bank, not included) for automatic charging. Save money and energy while enjoying bright light for long hours. You'll never need to buy batteries again! Comfortable and Easy to Use: With an ergonomic glasses frame, this magnifying glass is comfortable to wear, better secures the magnifier in front of your eyes, and effectively prevents it from falling, making it easier to work for extended periods. Versatile Use: View your workpieces or text magnified up to 450% of their original size with great clarity. The hands-free magnifying glass is perfect for reading, painting, watch repair, crafts, and hobbies. If this magnifying glass doesn't meet your needs, please let us know, and we will provide you with a satisfactory solution. Your satisfaction is our top priority. We will provide you with the best service. If you encounter any problems after receiving the product, such as damage or incorrect quantity, please contact us immediately, and we will provide you with the best solution!