3 Interchangeable Acrylic LensesReliancer headband magnifier glass set comes with 3 interchangeable acrylic lenses with different magnifications-1.5X,2X,2.5X!You can get up to 6 kinds of magnifications by combinating 2 lenses!You don't have to remove the front lens,it can be filpped up 90 degrees if you just need one magnifying lens.3 detachable magnifying lens with different magnifications meet various amplification requirements and provide clear images without distortion and blurring! Powerful Shatterproof Magnifying LensLens are made with premium scratch-resistant crystal-clear acrylic which enlarges components with ultimate clarity and less distortion,provides you a better reading and working environment!The surface hardness of the acrylic lens has been strengthened to 5H grade,which ensures better abrasive resistance and effectively prevent lens from being scratched or breaking!It's the perfect low vision reading aide for books,magazines,prescriptions and spapers! 2 LED Illuminative LightsThe headset magnifier is equipped with 2 ultra bright energy-efficient LEDs which provide a precise,uniform,and bright illumination under low light conditions or in the dark to ensure a perfect lighting magnified viewing experience,which is helpful for people with macular degeneration or far-sightedness/feyopia!The eye-friendly LED lights effectively minimizes glare and strobes,white light color closes to natural light,protect your eyes away from exhaustion!. 2 Adjustable Brightness LevelsThe daylight bright LED light comes with 2 brightness levels, simply press the power button to switch between strong light and soft light to meet the needs of different scenarios and usage!45 degree rotatable design makes the lighting angles can be ly adjusted to ensure accurate irradiation of light source on the surface of viewed object!Efficient rechargeable batteries can be fully recharged in about one hour with the included USB cable! Ergonomic Eyeglasses Bracket ergonomic frame providing maximum comfort for prolonged use,reducing the pressure on the bridge of the nose.The soft rubber nose pads and bracket will also help this head mount magnifier stay in the right position without feeling any burden.Comes with a lens storage box for storing the lenses to prevent loss;A high quality dustproof bag for storing the hand- magnifier and lenses storage box to make them clane and easy to carry