Head Mount Magnifying GlassFeatures:1. Large field of vision and generous depth of field with sufficient power for daily work.2. It has a specially coated lens that eliminates light reflection - the slightest interruption of your work.3. The unique design of this magnifying glass allows an optimal amount of light to be transmitted into your eyes to produce sharper, clearer and brighter images with an amazing depth of field, reducing eye strain.4. Magnification power 3.5x.Specifications:Field of view: 60 mmFrame: ABSMagnification: 3.5xWorking distance: 280mm-380mmDepth of field: 80 mmField of view: 60 mmContinuous running time: 5 hours.Bulb life: 10000 hoursInput voltage: AC110V 240V 50-60HzBox contents:1 x tooth magnifier.1 x screwdriver.1 x cleaning solution.1 x user manual (English language not guaranteed).Notes:1. If you use the battery power supply, you need to charge in time if the brightness of the light becomes significantly weaker.2. This product can only work in DC state. It cannot work while charging.3. Turn off the device when not in use or charging.Customer service: Lf you have any questions about magnifying glasses dentist, please feel free to contact us. We will serve you 24 hours a day with whole heart. Dental Surgical Binocular Widely used: Magnifying glasses dentist, which is used in dentistry, general surgery, plastic surgery, neurology, ophthalmology, throat and ear medicine and other surgical procedures, as well as in the electronics industry, textile industry and other industrial areas. Toothed magnifier: Dental surgical magnifying glass, 3 W LED head light lamp. With sufficient high performance for daily procedures. Unique lens: Our dentist magnifying glasses is made of high-quality optical glass material with a multi-coating. It can provide a large field of vision and a deep visual depth. Head Mount Magnifier Relieve fatigue: 3.5 x The dental surgical magnifying glass is used to reduce the fatigue of the dentist eyes, neck and shoulders caused by long periods of time in the lower head area.