YoctoSun Rechargable LED Lighted Head Magnifier

INTERCHANGEABLE LENS DESIGN: Switch between 5 optical lenses using a simple click-and-release system. Magnification power of the head magnifier: 1.0X, 1.5X, 2.0X, 2.5X, 3.5X. Scratch-resistant acrylic reduces weight. COMFORTABLE AND EASY TO USE: Comfortable eyeglass frame with rubber nose-pads.Alternate between wearing it as glasses or headband. The included head strap can be attached with ease to ensure a more secure fit. ADJUSTABLE BRIGHTNESS LEVELS: There are two brightness levels that provide excellent light for illuminating detailed surfaces. Two levels of brightness are available by pressing the switch on the top of the headset magnifier. RECHARGEABLE DESIGN: This magnifying glass with light is equipped with a rechargeable built-in lithium battery and comes with a USB charging cable, simply plug the cord into the magnifier and the other end into the slot of a USB power source(such as a USB wall charger, a cell phone charger or a power bank, not included) and it automatically cha