Efficient Rechargeable Batteries: Say goodbye to heavy glasses magnifying glasses Head Magnifier with the board stores electricity instead of the traditional batteries, making the magnifying glass lighter and giving you a more comfortable trial experience. Convenient USB Charging Interface: No need to replace the battery, just fill it up in an hour USB charging interface is more convenient and environmental. You can be directly powered through USB interface. One-hour charging time provides up to 8 hoursof working time for rechargeable batteries. 5 Different Magnification Lens for Close Work: Headband magnifier glasses provides five magnification 1X, 1.5X, 2X, 2.5X, 3.5X. The size of the object can be observed to choose the required lens such as sewing, needle work, knitting, cross stitch, embroidery,etc. All lens come in a sturdy storage box to keep them organized and protected. There is also a microfiber cleaning cloth included in the package. Flexible and Comfortable Nose Bridge Holder: Protect your nose Efficient rechargeable batteries and nose bracket with soft rubber coating can greatly lighten the load on the bridge of the nose. Putting your nose in a more relaxed working position Adjustable LED Glass Lamp: The led light provides sufficient brightness in any dark or dim environment, which enable you to see small things better at night. You can easily turn on or off the light via a switch. Both the lens angle and the lightning anglecan be positioned to ensures that the light irradiates the surface of the viewed object accurately.