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Telephoto Zoom Monocular - 4K 10-300X40Mm

$39.99$89.99Save 56%

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Telephoto Zoom Monocular - 4K 10-300X40Mm

  • Single-tube super-telephoto lens: The telescope's anti-shake system and a special tripod 3D gyroscope make the telescope's field of view very stable during multiple magnifications, and it is very compact and convenient to use, providing clear and bright images and enjoying the beauty of the distance.
  • One-handed focusing, waterproof and anti-fog: The ergonomic design can help you quickly and accurately focus on the target with one hand. Durable striped rubber armor makes it comfortable to use, non-slip grip, and long-lasting external protection from the hands. IPX7 nitrogen-filled waterproof glue, with anti-fog coating and O-ring, sealed optical components, can prevent moisture, dust, and debris, and always keep it clean.
  • Stunning crystal clear vision:  For the dual focus design, high light transmittance, the focus sight can provide you with brighter and higher contrast images. You can twist the eye mask to focus deeply for yourself, and then adjust the focus adjustment and zoom adjustment until the field of view is clear.
  • Shimmer night vision: Built-in night vision function allows you to use it normally at night. Turn on the autofocus and blur the background function, you can focus on observing the person or object you need to observe.
  • Very suitable for outdoor sports enthusiasts and wild explorers: Handheld devices are essential equipment for bird watching, wildlife, hunting, hiking, mountain climbing, camping, camping, surveillance, and travel. Kaiyu monoculars have a wide view and enjoy the best view in outdoor adventures. You can freely admire birds, hunting, hiking, camping, traveling, wildlife, scenery, etc.

Durable, reliable, and dexterous
-One-handed focus with phone adapter

In addition to a convenient phone adapter, our powerful spotting scopes are also compatible with iphone Xs/Max, iphone Xr, iphone X, 8/8plus, 7/7plus, 6/6plus, 5/5s, Samsung GALAXY S8/7/6, Edge, Note, Google Pixels, LG, HTC, Sony and almost all other smartphones on the market.

Durable and clear
Monoculars are specially designed for all outdoor enthusiasts. With its excellent optical system and lens, you can easily use our compact monoculars to get a clearer and clearer vision without any loss.

Weather risk
Prevent moisture, dust and debris from entering the scope-designed to prevent internal fogging. Suitable for daily waterproofing and most outdoor environments.

3M close focus

Can clearly see any object outside 3M

Telescope distance: 3M to infinity, let this perfect world be clearly in front of your eyes.

Stretch design

After installing the mobile phone, there is no need to remove the mobile phone to adjust the focus, just stretch it lightly to adjust the focus.

Portable tripod

You can keep your phone firmly fixed on it, and you can observe the world while lying down.


Objective lens diameter: 30mm
Magnification: 7-17 times (corresponding to adjustment level 10X100)
Eyepiece diameter: 22mm
Exit pupil diameter: 4.2-1.7mm
Eye relief: 14-12mm
Field of view: 230-110FT 1000YDS
Field of view: 4.4-2.1 degrees
Minimum focusing distance: 2.5m
Size: 173/128x43mm (stretching and shrinking)
Weight: 300g
Prism: BAK4 prism
Coating: FMC
Colour: Black
Eye mask: rotating eye mask
Waterproof: yes
Tripod can be connected: Yes
Connected phone: yes
Used for: racing, beach, bird watching, boating/yachting, horse racing, hunting, outdoor activities, sports, theater, travel
Material: optical glass
Type: Monocular

Powerful additional functions

  • Lightweight, convenient, and full of feel.
  • The latest ABS synthetic plastic steel material, no fear of collision.
  • The latest BMK4 prism. The world is very clear. High magnification does not shake.

    Advantage 1

    It can be connected to a mobile phone or used alone.

    Advantage 2

    High magnification will not shake.

    Advantage 3

    Simply stretch and rotate the zoom.

    Advantage 4

    It can be used at low light.

    • If there are no terrain obstacles, you can easily observe people or things 6 miles away by using it.
    • The built-in night vision function allows you to use it normally at night.
    • Turn on auto focus and blur the background function so that you can focus on observing the person or thing you need to observe.
    • The telescopic anti-shake system and special tripod 3D gyroscope make the telescope's field of view very stable when it reaches a magnification of hundreds of times. Its performance is even much better than most astronomical telescopes with thousands of dollars.

Products include:

1x 10-300X40mm telescope monocular
NOT include tripod and Smartphone Holder