1、3 LED LAMP: Designed with 3 rechargeable LED lamps, which can adjust the direction to obtain more accurate lighting angle, support the continuous work of soft light for 5 hours and strong light for 2.5 hours. 2、COMFORTABLE WEAR: The inner side of the headband is soft sponge, the adjusting wheel can be adjusted to perfectly match the head of various sizes, making the headband magnifier comfortable to wear. 3、ACRYLIC LENS: The magnifying glass is designed with shatterproof transparent acrylic lens, with high definition and portability, which will not make the head feel heavy. 4、23 KINDS MAGNIFICATION: We provide you with 5 replaceable lenses (1.0X, 1.5X, 2.0X, 2.5X, 3.5X) and small circular auxiliary lenses (8X). You can combine to obtain 23 different magnifications. 5、DIFFERENT USES: The head mount magnifying glass can be used for reading, painting, observing, modeling, repairing, sewing, welding, jewelry making and other crafts, free your hands.