Hold small lens 5LED lights Use batteries or external power 5LED AUXILIARY CLIP MAGNIFIER AC/DC INTERCHANGEABLEMaterial: plastic + metalLens: optical glass + acrylic lens Magnification: 2.5X, 7.5X, 10X,Light sources: five LED lights shine can be freely adjusted, external AC can also use 3 AA batteriesPackaging: color box