This versatile head magnifier features an interchangeable lens design with five magnification options (1.0X, 1.5X, 2.0X, 2.5X, 3.5X) that easily click into place. It offers a comfortable eyeglass frame with rubber nose pads for a custom fit and can be worn as glasses or with a secure headband. Two adjustable brightness levels provide excellent illumination, and the built-in rechargeable lithium battery with USB charging eliminates the need for disposable batteries. Ideal for close work like sewing, crafts, beauty tasks, and more, it magnifies up to 350% with clarity.