Uses: Pen microscope can observe the print outlets, metal surface texture, and cracks can be more clearly observed surface.

Features: 1. Eyepiece: Multi-lens, multi-layer coating, the mirror is especially clear, waterproof fog.

           2. Lens: The optical resin films, those who do not need vision correction can be used directly.

           3. Product comes with LED light source

           4. Battery: Electronics Batteries.
           5.25XK 50XK