1. Portable direct ophthalmoscope for fundus examination
2. 5 different apertures with red-free filter
3. Lens range from -20D to +20D
4. Large circle aperture for normal fundus examinations
5. Small circle aperture for examination when pupils are small
6. Fixation aid for central and eccentric fixation assessment
7. Semi-circle aperture for reflex reduction
8. Green red-free filter for fine vessel observation
9. LED white / LED sunlight illumination
10. Optional rechargeable handle
11. Available in multiple colors
12. Compact design with portable storage case