Illuminated Multi-Power LED Head Magnifier HEAD MAGNIFYING GLASSES: Magnifies from 1.9x to 8.3x with a fixed lens, flip-down lens & flip-down loupe LED HEAD MAGNIFIER: Removable Dual bright white LEDs adjust vertically & horizontally that can be used as a free standing light source, Runs on 2 AAA batteries (not included) ADJUSTTABLE HEADSTRAP : Circumference of the head strap adjusts with a turn dial located on the back for smooth and easy adjustments for different head sizes APPLICABLE SCOPE: Lightweight and comfortable head magnifier for everyday use, hobbyists, arts and crafts, jewelry design, model building, reading, inspection and other low vision tasks. MAGNIFYING WARRANTY: I am a personal small seller, Has been committed to providing the customer with the best source for value possible.my problem has a 1-month replacement, 1-year warranty.