This product has complete functions, clear imaging, exquisite workmanship, can replace the battery on its own, comes with a screen, can connect to a computer, supports up to 12 languages, and more. Maintenance inspection, circuit board inspection and repair, textile inspection, clock and mobile phone inspection, skin quality inspection Printing inspection, teaching and research tools, precision object amplification testing, etc. Jewelry and antique appraisal, coin appraisal, etc. Reading assistance, hobbies, etc.