1. All multi-coated optical system, capable of presenting detailed images. 2. Lightweight and easy to use, no application required. 3. Wide compatibility: F1.8 design, the universal clip is suitable for a large proportion of mobile phones. 4. Can be used for laboratory work, STEM applications, jewelry appraisal, health diagnosis, art research, outdoor exploration, etc. 5. Compatible with single - camera and dual - camera mobile phones. 6. Optical distortion: Less than 4.5%. 7. Definition of standard focusing distance: 10 - 11.4 mm (a relatively good distance is 10.95 mm from the first lens of the lens). 8. Definition of focusing distance based on product shape: 3.6 - 5 mm (a relatively good distance is 4.57 mm from the outer surface of the product). 9. Number of lenses: 4 groups with a total of 4 pieces. 10. Magnification: Approximately 100 times. 11. Lens: F1.8 12. Lens coating: Multi - coated 13. Clamping distance: Approximately 40 mm from the edge of the mobile phone. 14. Battery capacity: 30 mAh 15. Charging interface: USB 16. LED brightness: 6 LED light guides, single brightness 17. Battery life: Approximately 100 minutes, flashing when the battery is exhausted. 18. Color temperature of the lamp beads: 6000 - 6500K 19. Charging indicator light: The red light is on when charging, and the green light is on when fully charged. 20. Charging time: Approximately 90 minutes 21. Color: Black 22. Material: PC 23. Dimensions: 8.6 cm × 8.6 cm × 3.0 cm 24. Contents of the package: - 1 mobile phone lens - 1 USB cable - 1 cleaning cloth - Only the above package contents are included, no other products are included. 25. Note: Light and different displays may cause slight differences between the color of the item and the actual object. The allowable measurement error is ±1 - 3 cm.