[2019 Upgraded] 10-20x50 Zoom Monocular Telescope Compact with Smartphone Holder & Tripod, Waterproof Monocular with BAK4 Prism Scope for Bird Watching Hunting Camping Shooting Range Hiking

Kalawen High Power10-20x50 Zoom Monocular Telescope for Smartphone with BAK4 Prism

Features:
- 50MM objective lens diameter , which field of view is 1/3 larger than a general telescope. This magnification gives you a clear view at up to 1000yds away.
- The HD monocular telescope equipped with BAK-4 prism and Super Multi-6-layer Ultra-broadband Green Membrane Coating lens, guarantee superior light transmission and brightness and the light transmittance reaches up to 99.8%
-Upgraded 10X to 20X magnification, provide more wider, clearer and brighter scene in your eyes. Adjustable magnification of this monocular give you a visual fidelity to see the wonderful world.
-The waterproof monocular for adult come with a newest smart phone adapter which is compatible with most smart phones. Compatible with iPhone x, 8/8plus, 7/7plus 6 6S, Samsung Galaxy S6, S6, S7, S8, S8 Plus S9, Note, LG, htv, Sony, etc


Specifications:
- Magnification power: 10-20x
- Type of Prism: Roof prism / BAK4
- Objective diameter: 50mm
- Eyepiece Diameter: 22mm
- View Angle: 2.5° - 4°
- Field of View: 215-278 Ft / 1,000Yds
- Eye Cups : Twist up
- Relative Brightness : 8 - 14
- Exit Pupil Diameter: 2.5mm-5mm
-Exit Pupil Distance：21.5mm
- Waterproof: YES
- Nitrogen Filled: YES
- Product weight: 1.20 lb / 546 g

Package:

1 x 10-20X Zoom monocular telescope
1 x Cleaning cloth
1 x Portable bag
1 x Tripod
1 x Phone holder
1 x User manual
1 x Desiccant
1 x Lanyard