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Bak4 Prism HD 10 20 30x Zoom Cell Phone Monocular Telescope

China Sichuan Tontube Technology Co.,LTD certification
China Sichuan Tontube Technology Co.,LTD certification
Customer Reviews
Good quality products, trusted supplier!

—— VIctor Osorhan

Outstanding product quality & service! We have worked with a lot of companies in Asia, many times the quality is great but the communication is too complicated. In case of Shifang Yuantong Optical Instrument the quality of the products is excellent AND the communication is outstanding easy and fast

—— Matthias Frisch

8x33 Monocular ED I ordered only one as sample. They shipped fast, had in stock. It is of good quality, very sharp optics, focus smooth and fast.

—— Giorgio Pattarini

Very high quality product! Supplier is attentive, knows the business and is always willing to help. Very pleased with the whole process.

—— Ana Silva

Binocular 8x40 Porro FOV 140m/1000m I ordered one piece as sample, and they shipped promptly from stock. Well made product, very sturdy; the prism are mounted into a cradle inside the housing. The objective is recessed and protected. Focusing wheel is a bit hard but precise; eyepieces are stable. Good optics with green coatings, prisms with black c

—— Milucci Christian

I just wanted to say THANK YOU! :-) ^_^You've always responded to all my questions very promptly and with all the details i asked!You worked with me offering different options when appropriate:shipping options, or neck strap options,or boxes, You've always nice to me! so Thank you!!!

—— Ann Byrne

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Bak4 Prism HD 10 20 30x Zoom Cell Phone Monocular Telescope

Bak4 Prism HD 10 20 30x Zoom Cell Phone Monocular Telescope
Bak4 Prism HD 10 20 30x Zoom Cell Phone Monocular Telescope

Large Image :  Bak4 Prism HD 10 20 30x Zoom Cell Phone Monocular Telescope

Product Details:
Place of Origin: Sichuan, China (Mainland)
Brand Name: Tontube / OEM ODM
Certification: CE, FCC, ROHS
Model Number: YMt4
Payment & Shipping Terms:
Minimum Order Quantity: 1pieces
Price: Negotiation
Packaging Details: 50 pieces/ carton, size: 38X39X52cm, weight 25kg
Delivery Time: 7-30 days
Payment Terms: L/C, D/A, D/P, T/T, Western Union, MoneyGram,Paypal
Supply Ability: 30000 pieces per month
Detailed Product Description
Product Name: Bak4 Prism HD 10-30x42 Zoom Cell Phone Monocular Telescope For Adults Magnification: 10x-30x
Objective Diameter: 42mm Prism: BAK4
High Light:

30x Zoom Cell Phone Monocular Telescope


20x Zoom Cell Phone Monocular Telescope


Bak4 Prism mobile phone monocular telescope

Bak4 Prism HD 10-30x42 Zoom Cell Phone Monocular Telescope For Adults



10x30x42 Zoom Monocular Features

Non-slip central focus with one hand-easily focus on moving targets.
The high-resolution 42mm objective lens and high brightness expand the target field of view.
The fully multi-coated green film makes the field of vision clear and clear, and provides clear images.
Adjustable upper and lower glasses can display glasses comfortably, regardless of whether they wear glasses or not.
Bulletproof rubber cable, non-slip durable external protection.
Protective covers for eyepieces and lenses-prevent scratches and unnecessary scratches.
Private detective taking pictures, professional knowledge, geological prospecting, forest management, railway port planning, etc.
If you cannot see a clear image when using the telescope, please adjust the focus slowly until you get a clear image.

Bak4 Prism HD 10 20 30x Zoom Cell Phone Monocular Telescope 0


10-30x42 Zoom Monocular Description

A magnification of 10 times to 30 times can provide various viewing experiences. This allows you to capture more details and find the target to move. Powerful 10 times magnification view is more comprehensive. The large 30x magnification observation becomes more detailed, allowing you to quickly find and focus on the subject, thereby providing you with sufficient magnification to view the details you need.

Twist-up eye cup is easily adjusted to maximize custom fit for comfortable viewing with or without eyeglasses. The focus wheel on the top of the fuselage allows you to easily adjust the focus with your index finger. The magnification of the single-tube zoom lens can be adjusted as required.


With Bak4 Prism multi-layer, fully multi-layer coated broadband green lens, at least 99.5% of the light passes through the green film eyepiece. You can enjoy stable and vivid images in bright and dark places.


Portable and sturdy: The environmentally friendly rubber and non-slip design based on the camera's appearance principle provide a more comfortable grip.


Suitable for any occasion: With variable magnification and dynamic lens focusing system, which can easily zoom in on the target, very suitable for hunting, camping, target shooting, archery, bird watching, watching wildlife, scenery, and even astronomy.



Product Specifications

10-30x42mm zoom monocular
Fully Multi Coated
240-141Ft / 1000Yds
80-47M / 1000M
Twist-up eyecup




- 10-30x42 zoom Monocular
- Carrying bag
- Cleaning Cloth
- Hand Strap
- Operational manual

- Eyecups for eyepiece and objective lens



OEM ODM Accessories:

Bak4 Prism HD 10 20 30x Zoom Cell Phone Monocular Telescope 1



Packing & Shipping


We provide comprehensive shipping methods.
* For small quantity orders we ship by DHL, FEDEX, EMS/TNT Express service which is the fastest. Postal ways are also acceptable for small orders.
* For large quantity orders we ship by Air transportation or sea transportation, we can also ship order to buyer’s cargo agent in China.



In stock: in 7 days;

OEM: about 30-60 days after ordering




1. Is your company a manufacturer or trading company?
We are an experienced manufacturer specializing in the production of binoculars, rifle shooting ranges, monoliths, sights, astronomical telescopes, optical instruments, etc., which has a history of more than 15 years.


2. What is your payment method?
The payment methods we usually accept are T / T (bank transfer), Western Union, PayPal and MoneyGram. Your payment method may be tailored to your specific requirements.
We accept different payment methods in different countries.
A 50% deposit is paid in advance, and 50% of the balance is used for transportation. Terms of payment can be negotiated.

3. Does your company provide customized personal services?
YES. OEM / ODM / customization / create your own logo / brand is warmly welcomed!
We can customize or modify our products to meet your requirements.
We can design, innovate, develop and produce new parts according to your specific requirements.

Bak4 Prism HD 10 20 30x Zoom Cell Phone Monocular Telescope 2Bak4 Prism HD 10 20 30x Zoom Cell Phone Monocular Telescope 3Bak4 Prism HD 10 20 30x Zoom Cell Phone Monocular Telescope 4

Contact Details
Sichuan Tontube Technology Co.,LTD

Contact Person: Miss. Allie Nie

Tel: 18215595193

Fax: 86-28-89346527

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