1Head mount magnifier composed of eyepiece and objective lens. The eyepiece is closer to the eye, and the objective lens is in front of the eyepiece. Adjustment wheels can be used to change the magnification of the magnifying glass by moving the objective lens forward or backward. 2The closer the objective lens is to the eyepiece, the lower the magnification and the wider the field of view. The further the objective lens is from the eyepiece, the higher the magnification, but the field of view will be smaller. 3Has longer focal length and the focal length can be adjusted according to the required multiple to achieve the best effect when using. 4Have locking function on the adjusting wheel. After adjusting the required magnification, the adjusting wheel can be locked to prevent the change of magnification caused by accidental contact. 5Can use the elastic headband to prevent magnifying glass fall off and affect the use effect when long time working or watching video. With a desktop stand, which is suitable for mobile phone/tablet, adjustable angle and can be folded for easy carrying when not in use.
