1. The installed external telephoto lens is added to the front of the mobile phone camera by optical zooming. This does not affect the reduction of the picture clarity caused by the digital zoom thus improving the ability of the mobile phone to telephoto objects.
2. Dual adjustment eyepiece system for adjustable viewing angle and full screen imaging.
3. BAK4 optical glass prism FMC width multi-layer coating improve light transmittance reduce reflectivity increase luminous flux to ensure clear and bright field of view.
4. Aspherical optical glass lens multi-layer coating anti-distortion to improve color reproduction.
5. Alloy forged mirror body textured anti-skid adjustment valve extended lens life and more beautiful appearance.
6. The lens is not a one-piece design and can be used with brackets handheld or monoculars.
7. Suitable for outdoor concerts sports competitions etc.

Product parameters:
1. Lens: 4K high definition.
2. Coating: BAK4 multilayer optical glass coating.
3. Multiple: 36X adjustable.
4. Lens length: 174mm.
5. Front diameter: 42mm.
6. Rear diameter: 13mm.
7. Housing: Aviation aluminum.
8. Magnification: 36 times (true magnification).
9. Field of view: 1000 m / 8000 m.
10. Observation range: 3-8000m.
11. Body material: metal.
12. Coating type: Multi-layer coating all-optical.
13. Product weight: 186g.

Packing list:
Mobile phone universal metal clip x 1
Handbag bag x 1
Metal telescopic bracket x 1
Watching the goggles x 1
Wipe cloth x 1
Instruction manual x 1
Bluetooth Selfie x 1