Shenzhen Greetwin Technology Co.,Limited

The Leading supplier of Cell Phone Jammer and Bomb Jammer

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Shenzhen Greetwin Technology Co.,Limited Factory Tour

Good quality GPS Signal Jammer for sales
Good quality GPS Signal Jammer for sales
Customer Reviews
Excellent quality, professional service and fast delivery!

—— Mr. Alex pereira

You always can give me the best plan ,and it lets my customer feel great,i hope we can have another chance to cooperation.

—— Mr. vicente colque

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R&D group production line Warehouse
R&D group
production line

R&D group

GREETWIN have strong and excellent R&D group

production line

Our Factory have 1800 square meters


  • Production Line

          Shenzhen Greetwin Technology Co., Limited was established in City of Shenzhen ,Guangdong Province in 2005,After 10 years effort and development, at the moment we have become one of the leading supplier of Cell Phone Jammer and Bomb Jammer.

    with manufacturing,sales and technical after-sales service as a whole,engaged in professional RF Jamming products.

    Knowledgeable support

         We have high-quality professional technicians and advanced modern production equipment.

    All of the products comply with international quality standards and are greatly appreciated in a variety of different markets throughout the world.

    We take technical support very seriously. In fact, Greetwin employs as many technical staff as we do salespeople. Buying from Greetwin provides direct access to our team of experts who are involved in every aspect of product development - from design and testing, to support.


    Guaranteed reliability

    Quality Objectives:

    The qualified rate > 99.9%,

    User Satisfaction rate > 99.9%





    GREETWIN company have own team of designers, we can make different types from OEM&ODM customer's needs!

    If you:

    1. Are looking for OEM/ODM manufacturers in this industry.

    2. Need someone that can produce what you want and have a custom design printed to your specification.

    Then our OEM/ODM service is for you!



  • R&D

    GREETWIN have strong and excellent R&D group who dedicated to the research and development of RF Jamming products. Our Engineer are mainly from Peking University and National Defence University PLA China.
    Our clients are government agencies, military, SWAT team, prison, school, bank, law enforcement and VVIPs. 


Contact Details
Shenzhen Greetwin Technology Co.,Limited

Contact Person: Mr. Albert

Tel: 86-15112267605

Fax: 86-755-29172680

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