Interchangeable Acrylic Lenses: Includes 3 acrylic lenses with different magnifications: 1.5X, 2.0X, and 2.5X. Combining any two lenses provides three additional magnifications: 3.5X, 4.0X, and 4.5X. The front lens is reversible. If a combination of two lenses is not in use, it can be lifted without removing the magnifying glass. Adjustable Brightness Levels: Features two brightness levels: bright light and soft light, providing excellent illumination of surfaces. These two brightness levels are selected by turning on the switch. The light angle is also adjustable to suit the task at hand. Rechargeable Batteries: This magnifying glass charges in 1 hour. Simply connect the USB cable to the magnifying glass and the other end to a USB power source (such as a wall charger, mobile phone charger, or power strip, not included), and it will charge automatically. Save money and energy while enjoying bright light for hours. You'll never have to buy batteries again! Comfortable and easy to use: Thanks to its ergonomic glasses holder, this magnifying glass is comfortable to wear, securely positioning it in front of your eyes and preventing it from falling, making extended work easier. Versatile use: View your workpieces or texts magnified up to 450% of their original size with exceptional clarity. This hands-free magnifying glass is perfect for reading, painting, watch repair, crafts, and DIY projects. If this magnifying glass doesn't meet your needs, please contact us and we'll offer you a suitable solution.