Feature: 1. Adjust Brightness: LED Head magnifier brightness can be adjusted according to your needs, at 420mm working range, the spotlighting size can be adjusted from 10mm to 19mm for best view. 2. Clear Image: Headband lighted magnifying glasses adopted latest optical coating technology to reduce reflection and improve image sharpness, provides cool, bright, even and focused light. 3. Comfortable Wearing: LED Head magnifier with foam support headband distributes weight and reliefs stress, relieving discomfort and headaches, you can adjust the headband to fit your head. 4. Widely Use: Hands free headband magnifying glass can be used in dental, also for different purposes, such as reading, painting, observing, styling, repairing, sewing, welding, etc. 5. Reversible Glass: Magnifying glass can be flipped upwards to obtain a perfect view from any Angle, which is ideal for long term tests and surgeries, provide long endurance. Specification: Item Type: 2.5X Lighted Head Magnifying Glasses Material: ABS Built In Lithium Battery: 500mAh (Included) Magnification: 2.5X Use: Dental surgery and other purposes, providing local lighting. suitable for lighting, man machine relationship requirements are high or move frequently scenes. can also be used for different purposes: reading, painting, observation, modeling, repair, sewing, welding, jewelry making and other hobbies or crafts.. Package List: 1 x Lighted Head Magnifying Glasses1 x Power Cord1 x Cleansing Cloth 1 x Screwdriver 1 x Instruction 1 x Aluminum Storage Box