Application:It can be quite easily used under the following conditions:Operate or read at a dim or dark placeInteresting work such as carving, handcraft and sewingAssemble or repair small fittings Check the finished productProviding light source for the glasses is the most suitable for operation or interesting handcraftFeatures:With the work required can be flexibly adjusted single lens, double lens or three lenses, flexible to change the combination of different magnification.Detachable LED light box design, can be combined or separated into two separate different uses.LED light source perspective, up, down, left and right free adjustment.With thumb screws, Keyi focus attention needs flexibility to adjust the cap margin, and lens tilt.Headband size, can freely adjust to fit the size of your head.Features with 1.5X, 3X, 8.5X, 10X magnification for your choiceThe characteristics of the automatic booster device:1.Can use two batteries voltage 3 V to 4.5 V, the LED lamp brightness can be increased.2.Sustainable use 30 hours and the brightness is constant3.Battery only 30% of the energy, under the condition of voltage 1.5 V can be normal useLens Material: AcrylicSizepound;ordm; 280 x 200 x 70mmMagnification: 1.5X, 3X, 8.5X, maximum 10XPower: 2 x 1.5V AAA batteries (not included)Package:1 x Magnifying glasses