1.APPLICATION RANGE: The aged, low vision crowd, macular degeneration, reading books, newspaper, read crossword puzzles,suitable for children to observe insects,repairing electronics, cataloguing coins, help produce small,precise handicraft workers,appreciating flowers potted landscapes etc. 2.THE PERFECT LENS FOR ANY TASK: The 10X to 20X magnifying lenses are ideal for reading and hands free applications like sewing and knitting, while the 25X lens is perfect for soldering, model building, coins, stamps, jewelry appraisal, watch and electronic repair etc. 3.REDUCES EYE STRAIN Soft cool bulb for natural color and shadow-free magnification will not harm the eyes,ideal for anyone who strains their eyes to see words on a page or for projects that require small pieces.This lamp has high quality LED, no flash frequency and long life. Save money and energy while enjoying lasting bright light. 3. SPECIFICATION OF LED HEAD MAGNIFIER: - Product Material: acrylic lenses ABS - Single-lens magnifications: 10X,15X,20X,25X - Battery:3 LR1130VERSATILE: The individual lenses magnifying lenses can be easily assembled and dismantled.Perfect headset magnifier for close up work like dentists,electricians,jewelers,sewing,crafts,beauty,painting and the elderly. FASHION AND DURABLE -- Mounted on a black eyeglass frame for hands free use,Sturdy Metal Frame, Arylic Lens can be adjust to any comfy angle. Convenient to magnify articles accurately.This headband magnifier glasses has a very light weigh so that you would not feel any burdened or uncomfortable. FOLDABLE FRAME -- This magnifying glass is easy to carry. Take up very little space.The loupes are mounted on the black eyeglass frames and can be adjusted for comfort while keeping your hands free. ADJUSTABLE ULTRA BRIGHT HEADLIGHTS: Two energy-efficient LEDs It is quite bright and makes good light to ensure accurate irradiation of light source on the surface of viewed object ,making it more convenient in use.This magnifying glass lamp can be used as a headlamp at night. No worries about light condition anytime and anywhere.3 LR1130 battery powered. 4 INTERCHANGEABLE LENSES - Strengthening lenses with 4 magnifications(10X,15X,20X,25X) are included for your various needs, and well packed in a stable case for easy carry and long time storage.