1.Interchangeable Lens Design: Switch between 4 optical lenses using a simple click and release system.Magnification power of the head magnifier: 1.5X, 2.5X, 3.5X, 5X.The lenses are made of acrylic resin,which is more wear-resistant and durable.The wider lens provide you with wider field of view. 2.Two  LED Lights with Adjustable Brightness Levels: Two LED lights with two brightness levels which provide excellent light for illuminating detailed surfaces. 3.Rechargeable Batteries: This magnifying glasses with light is equipped with a rechargeable built-in lithium battery and comes with a USB  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 charges.Save money and energy while enjoying long lasting bright light.You will never need to buy batteries again! 4.  Comfortable And Easy To Use: Newly-designed eyeglass frame and wholly rubber wrapped nose bridge which can greatly lighten the load on the bridge of the nose.The rubber head strap can effectively prevent falling, thus it is easier to work for a long time. 5. Multifunctional Magnifying Glasses: Perfect Magnifying Glasses for reading, painting, sewing, close work, arts and crafts.It is also a big help for seniors.