| Model NO. | 4428/10X25 |
| Magnification | 10X |
| Function | Waterproof, Fogproof |
| Usage | Gift |
| Structure | Roof Prism |
| Lens Type | Prime Lens |
| Lens | Glass |
| Objective Aperture | 25mm |
| Focusing Type | Internal Focusing |
| Aperture | <50mm |
| Exit Pupil Distance | 15.5mm |
| Exit Pupil Diameter | 2.5mm |
| Field of View | 98m/1000m |
| Minimum Focus Distance | 1.5m |
| Focus System | Center + Right Eyepiece |
| Focus Lens | Internal |
| Prisms | Bak4, Dielectric Coat |
| Transport Package | Carton |
| Specification | 10X25 |
| Trademark | OEM or DONTOP |
| Origin | China (Mainland) |
| HS Code | 90051000 |
| Production Capacity | 100000PCS /Year |