| Model NO. | 4428/8X25 |
| Function | Waterproof, Fogproof |
| Usage | Gift, Bird Watching/Hunting, Travel |
| Lens Type | Prime Lens |
| Lens | Glass |
| Objective Aperture | <30mm |
| Focusing Type | Center Focusing |
| Aperture | <50mm |
| Objective Diameter | 25mm |
| Exit Pupil Distance | 15.5mm |
| Exit Pupil Diameter | 3.1mm |
| Field of View | 114m/1000m |
| Waterproof | Yes |
| Lens Coating | Fully Multi-Coated |
| Prisms | Bak4, Dielectric Coat |
| Condition | New |
| Transport Package | Carton |
| Specification | 8X25 |
| Trademark | OEM or DONTOP |
| Origin | China (Mainland) |
| HS Code | 90051000 |
| Production Capacity | 2000PCS/Week |