This portable digital microscope provides a wide 50x 1600x magnification range to clearly view the smallest details of your samples, from plants and coins to diamonds and welding seams. The focusing wheel is dedicated to focusing, and you simply adjust the distance between the lens and the object to achieve the desired magnification. Key features 50x 1600x Magnification: See fine details with a clear view of specimens such as plants, coins, diamonds, and welding. The focusing wheel is solely used for focusing; adjust the distance between the lens and the object to reach the desired magnification. Resolution Imaging: 2MP lens captures sharp images and videos up to 1920x1440P. When connected to a phone, view the microscopic world on the screen. Adjustable 8 LED Light: Builtin 8 LED lights provide sufficient brightness for detailed observation while reducing eye strain during longer sessions. The 360degree rotating focus wheel enables quick focusing in any direction. Note: the imaging distance is 2 60mm; rotate the focusing wheel left and right to avoid blur. PlugandPlay with Mobile Devices: No WiFi connection required. Two simple steps: plug the adapter into your phone, then open the relevant app to start observing. Compatible with Android 6.0 (OTG function/USBC) and iOS 10.0. Practical applications Education and hobby: examine leaf structures, insect parts, seed textures, and other small specimens for study or curiosity. Collectibles and jewelry: inspect engravings, engravings on coins, stamps, diamonds, and gemstones for authenticity and detail. Electronics and fabrication: inspect solder joints, circuit boards, and welding seams for quality control or work. Notes imaging distance is 2 60mm. Rotate the focusing wheel carefully to achieve sharp focus and avoid blur.