Head Mount Magnifier Vcedas LED Eyeglasses Headband Magnifier with 5 Replacement Lenses Hands Free Magnifying Glasses for Reading Jewelry Loupe Watch

Features Of Our LED Head Magnifier  Lens Material: Acrylic Lens diameter: 75 x 29mm Magnification:1x, 1.5x,2x, 2.5x, 3.5x Color: Black Power Supply: 3 x LR1130 Batteries (Included)   Package Includes: 1*Led Head Magnifier Glasses 1*Headband 5*Replacement Lenses (1 x 1.5x 2x2.5x 3.5x)   Magnification and focal length 1x(250-350mm) 1.5x(200-300mm) 2x(175-271mm) 2.5x(150-250mm) 3.5x(80-120mm) How to use it : 1.If you need to change the lens, just release it to release the current lens and snap the new lens into place. 2.Comes with a detachable head strap. The arms of the glasses can be removed to attach the head strap to the lenses. 3.If this magnifier needs to be worn for long time,it is advised to change bracket into headband state,which can make work comfortable. 4.If you don't need the light leave the 3 AA batteries out   Tip?1.Please do not put it under the sun to prevent fire2.For safety reasons,please be sure not to view the sun with magnifier3.For any dirt on the eyeglasses,please wipe the eyeglasses gently with soft cloth like eyeglasses cloth4.Please do not wipe the magnifier with the liquid such as banana oil,alcohol,petrol etc.