Shenzhen Greetwin Technology Co., Limited is one of the leading suppliers which specializes in designing and manufacturing RF Jamming Equipment and Wireless Coverage Products.

We are specialists in Wireless Signal Security, Professional for cell phone Jammers and GPS Jammer, WiFi Jammer, 3G Jammer, 4G Jammer, Lojack Jammer, UHF/VHF Jammer, RF Jammer, Audio Jammer, Wireless Video Jammer and signal Repeater/Amplifier/Booster etc.

SHENZHEN ZD TECH Co., Ltd

Our company was founded in Shenzhen in 2008 and has 17 years of experience in production, R&D, sales and after-sales service. We are one of the earliest OEM manufacturers in China to develop anti-drone systems and signal amplifiers. We have a leading edge in low-altitude drone defense technology and have won the trust and recognition of our customers with our advanced technology and high-quality products.

Gainer International (China) Limited is a professional enterprise which specialized in wireless communication products, customer electronics products. We are highly developing enterprise, with CE certificate and GB/T19001-2008 /ISO 9001: 2008. We spare no effort to provide good products and service for customers all over the world.

Quanzhou L-Tel Communication Equipment Co., Ltd. Was founded in 2007. Our company is located in the technology economically developed city of Quanzhou, China, enjoying convenient transportation. We are focusing on the development, production and sales of a variety of mobile communication repeaters, signal amplifiers and function modules. We are a professional manufacturer specializing in perfect solutions for wireless signal coverage for a variety of occasions. Our company has spectrum analyzers, vector network analyzers, signal emission analyzers, vector signal generators, noise figure analyzers, high-performance digital oscilloscopes, high-performance debugging power supplies and others world-class advanced testing equipment. Our company has a team of skilled engineers, efficient management personnel and an experienced and stable production team. We offer OEM/ODM services. Products can be customized as your special appearance and specific functions. Our strict quality management team focuses on product detail, integrity management and long-term cooperation to save you time and money.