Features： 1、Bright LED Light: Provides white, bright and uniform LED light. Light brightness can be adjusted according to your needs. The focus size can be adjusted from 10 mm to 19 mm for the best field of view at a 420 mm working distance. 2、Clear Image: Dental headband magnifier uses the latest optical coating technology to reduce reflections and improve image clarity. 3、Angle Adjustable: 3.5X magnifier comes with reasonable construction, which allows the magnifying glass to be flipped upward to obtain a view from any Angle. 4、Comfortable to Wear: Adjustable foam support headband can distribute weight and relieving discomfort and headaches, and the user can adjust the size through the multiple adjustment points to fit his head. 5、Widely Used: Powered by rechargeable battery or use AC power adapter, can be used for 6 hours after full charged. Can be used for different occasions, such as reading, painting, observation, modeling, repair, sewing, welding, jewelry making and other scenes. Specification： Item Type: Dental Head Magnifier Material :ABS Voltage: 100-240V Application: For dental surgery and other medical applications, to provide local lighting. Suitable for lighting, and can also be used for different purposes, such as reading, painting, observing, modeling, repairing, sewing, welding, jewelry making and other scenes. Lithium Battery: 500mAh(built in) Magnification: 3.5X Package List： 1 x Headband Magnifier 1 x Power Cable 1 x Cleaning Cloth 1 x Screwdriver 1 x Instruction Manual