Features1Replacement Lens: The headband magnifier has 5 interchangeable lenses of 150D, 200D, 300D, 2.5X, 4.0X magnification. The lens is made of acrylic resin, having specially strengthened and hard surface, more wear resistant and durable. 23 LED Lights: The head mounted magnifier has a wide irradiation range with 3 LED Lights, having adjustable two levels of brightness, providing light for the detailed surface, having simple operation of pressing the switch on the glasses holder. 3Easy to Use: The magnifier glasses have an ergonomic eyeglass holder, comfortable to wear and better to hold in front of your eyes, having comfortable and antislip rubber nose bridge bracket, easier to work for a long time. 4Multiple Use: The LED light headband magnifier can view your work or text enlarged to 400 times of its original size in high definition, suitable for jewelry appreciation, archaeology, reading, painting, watch repair, art and handicrafts, etc. 5Rechargeable Glasses: The rechargeable battery of magnifier can be filled in just 1.5 hours, having up to 7 hours battery life in low light, not replacing the battery, more economical and practical, having power display function, can always know the remaining power.SpecificationItem Type:HeadMountedMagnifyingGlassesMaterial: ABS, Rubber, AcrylicBattery Type: 602030 Lithium Battery (Shipped With Built In Battery)Battery Capacity: 300mahVoltage: 3.7VPower Supply Mode: Type C InterfaceRemovable Lens Multiples: 150D, 200D, 300D, 2.5X, 4.0XPackage List1 x Glasses Frame5 x Lens1 x Lens Storage Box1 x Crosshead Screwdriver1 x Charging Cable1 x Lens Cleaning Cloth1 x Instruction