?Warranty ?Elikliv provides a one-year warranty for the product. If you have any questions, please feel free to contact us, we will give you a satisfactory solution as soon as possible. ?Widely Used? The hands-free multi-power combined lens magnifications can meet your different needs: Observing, Modeling, Repairing, Sewing, Soldering, Jewelry Making, Reading, Painting, and other Hobbies/Crafts. Make close work so convenient for us. ?High Definition Lens?With 5 detachable lenses and 1 small round auxiliary lens, the magnifier is shatterproof clear acrylic lens design, high definition and lightweight. It won't make the head feel heavy. The small circular auxiliary lens can be rotated 360°. You can combine these 5 lenses and a small round lens (8x) to obtain 23 magnifications to meet your different needs:1x, 1.5x, 2x, 2.5x, 3x, 3.5x, 4x, 4.5x, 5x, 5.5x, 6x, 8x, 9x, 9.5x, 10x, 10.5x, 11x, 11.5x, 12x, 12.5x, 13x, 13.5x, 14x. ?Comfortable to wear?The inner side of the headband is soft sponge, fit for the head to wear. The headband adjusting wheel can adjust the appropriate size (pull to adjust, press to lock). Perfectly match various sizes of heads. Two knobs on both sides can adjust the height of the magnifier. ?Adjustable & Rechargeable Led Lights? 3 LED headlights can adjust the illumination direction to obtain a more precise illumination angle. The LED light is detachable, and the fully charged battery can make the LED light work continuously for 8-12 hours.