A. Equivalent focal length 40.6mm, exit pupil diameter: 1.45mm B. Optical Distortion: < 4.5%, Focus Distance: 0.3MM C. Number of lenses: 4 pieces 4 groups + CPL D. Lens Aperture: F1.8, Lens Coating: Multilayer E. Product material: PCs + electronic components F. Clamping distance: Max: 12mm, Min: 4mm G. Battery capacity: 110mAh H. Light on time: 2-4 hours, flash when the power is used up I. Charging instructions: red light when charging, green light when full J. Charging time: 1h K. 200X Magnification: Unveil microscopic wonders with 200 times magnification, capturing intricate details in HD clarity L. Versatile Applications: Embrace diverse possibilities with NanoZoom x200. Suitable for lab work, jewelry appraisal, art investigation, and outdoor exploration M. Portable & App-Free: Effortlessly transform your smartphone into a microscope - no need for additional apps N. Wide Compatibility: Specifically designed universal clip for mobile phones, ensuring a seamless experience for users O. Perfect Gifts: A useful, practical lens for students, collectors, engineers, testers, and those interested in exploring the microscopic world