With the phone holder, sucker design, which can adjust the angle, it is convenient and practical, so you can put your phone on the holder, take photos or record video, then you can share it with your family or friends. With the fill light, it is easy to install, which also energy saving, add the lamp, so you can see the observed more clear, give you a better using experience. The magnification can be adjusted from 64X-2400X, you should choose the suitable objective lens and eyepiece then adjust the multiples to find the clearest looking multiples. With the mating experimental equipment, which includes: fill lamp, phone holder, tweezer, trumpets, biological specimens, cover glass and so on, so you can use them directly, you do not need to buy them one by one, save your time and money. The fine gift: this tool set is the fine choice for you to send to your friends, family, children and so on. Specifications: Material: alloy Battery for the fill light: 3 * AAA battery Magnification: 64X-2400X Focusing range: 0-30mm Eyepiece: 16X, 30X, 2Xextender Objective lens: 4X, 10X, 40X Optical system: refractor Observation lens tube: monocular straight tube length of canister: 120mm / 4.7in Item size: 285 * 160 * 110mm / 11.2 * 6.3 * 4.3in Item weight: 792g / 1.7lb Package size: 318 * 203 * 150mm / 12.5 * 8.0 * 5.9in Package weight: 1294g / 2.9lb Packing list: 1 * Microscope 2 * Eyepiece 1 * Extender 1 * Fill Light 1 * Accessory Tool Set Please allow slight dimension difference due to different manual measurement.