Fangrui Product Details 1. Apexel Apl-ms002bk 200x Hd Universal Portable Mobile Phone Microscope With Led Light (black) 2. 200x Magnification, Fine And High-definition Microscopy 3. Lightweight And Portable, Convenient To Travel 4. Microscope Designed For Mobile Phones, Applicable To All Models On The Market, Widely Used In Iosandroid Smart Phones 5. Built-in Lithium Battery, Battery Capacity 3.7v120mah, Charging Time Is About 1 Hour, Battery Working Time Is 2-4 Hours, Usb Input Current Is 5v1a 6. Built-in Led Light Guide, 2 Levels Of Brightness Adjustment 7. Comes With Cpl Polarizer, Effectively Eliminate Object Reflection And Restore True Colors 8. Focus Distance: The Shooting Distance Is 0.3mm From The Outer Surface Of The Product 9. Equivalent Focal Length: 40.6mm 10. Diameter Of Exit Pupil: 1.45mm 11. Number Of Lenses: 4 Elements In 4 Groups 12. Product Material: Abs+pc 13. Product Size: 6.8x3.5x2.8cm