Founded in 2005, Guangzhou Lingyin Electronics Co., Ltd, has over 17 years OEM /ODM experience in Public Address System and Professional Audio System and Conference system.

Sinbosen Audio Equipment company limited, it's a Firm whose roots are deeply embedded into Guangzhou. Our Brand is Sinbosen. We make various kinds of professional audio equipment, such as switching power amplifier, Digital amplifier, DSP amplifier, Microphone and professional speaker.

Shenzhen Haiyi Science and Technology Electronics Co., Ltd. Was established in 2014 and officially registered in 2018. It is a comprehensive high-tech enterprise that integrates research and development, production, sales, and service. Provide signal amplifiers, wireless signal control systems, wireless signal countermeasures, wireless signal blocking devices, and explosion-proof interference devices.

Hangzhou Fullwell Optoelectronic Equipment Co., Ltd. Was established in 2005 and is suited in Qimeng Science & Innovation Park, Liangzhu Street, Yuhang District, Hangzhou City. The company is committed to the R&D, manufacturing and sales of triple play integrated optoelectronic equipment. We have a number of software copyrights have been certified by the National Copyright Administration. At the same time, the National Intellectual Property Office has issued a number of utility model patents, and won the title of Zhejiang Province Small and Medium-sized Technology Company. Fullwell has been recognized as the Yuhang District Science and Technology Enterprise R&D Center by Hangzhou Yuhang District Science and Technology Bureau.

Since 2014, Shenzhen Texin Electronics Co., Ltd (Brand name: TXtelsig or TeXin) is the professional manufacturer of the innovative signal jammer catering to the international quality standard and the market need. Our factory locates in the Shenzhen city, Guangdong Province, China, with the whole 2ND floor factory the SMT machine, assembly and the warehouse, and the No. 303 in 3rd floor the office room.

Founded in 2011, ruizheng audio is designing and distributing amplifier, speakers, speaker system under the AiMEEK brand name, they also supply OEM/ODM components to many of the professional audio brands in the market today.

Founded in April 2016, Shanghai Ruitai Photoelectronic Technology Co., Ltd. (Raytekoptics)is located in Jiading industrial base, Shanghai National Technology Transfer Center, Chinese Academy of Sciences, adjacent to the Institute of Optics and mechanics, Chinese Academy of Sciences. At present, the company has nearly 50 employees, mainly producing and selling all kinds of optical components, including all kinds of optical lenses, optics mirrors, optics windows or diffusers, optical filters, polarization optical components, spectrometers, optical prisms, optical diffraction gratings, infrared optical components, fiber assemblies, laser optical components, coated optical components, ultrafast optical components, transfinite optical mirrors, etc. As a wholly-owned subsidiary of Shanghai Jingzhi (formerly Shanghai silicon sword) new materials Co., Ltd. And Shanghai C-laser, Shanghai Ruitai Photoelectric has a professional production base of 10000 square meters and various processing equipment, including large water jet, horizontal band saw, CNC machining center, multi-function milling machine, CNC fine carving machine, CNC plane precision milling machine, CNC lathe, water mill, internal circular slicer and polishing machine, polishing machine, Focused ion beam(FIB), Magnetorheological Polishing (MRF), CNC six axis small grinding machines, interferometers and other sophisticated equipment dozens. On this basis, Shanghai Ruitai Photoelectric can provide customers with accurate, complete, high quality optical parts customized processing services. Our products sell well in Europe, the United States, Russia, Japan, South Korea, Germany, Spain, Italy, France, Saudi Arabia, Canada, Australia, New Zealand, Norway, Argentina, South Africa and other countries and regions, and are deeply recognized and appreciated by users at home and abroad. In addition, Raytek Optics widely supply all types of optical parts made of Corning, Schott, Hellma, Nikon, Ohara, AGC, Vitron and other materials, including quartz glass, glass ceramics, optical glass and coating materials. The main domestic optical mechanical (Electrical) institutes, research institutes and astronomical institutes at all levels have established extensive and profound business relations with us.

The factory was established in 1989, focusing on the production of hardware products.

Shenzhen ATNJ Communication Technology Co., Ltd is located in Shenzhen, Silicon Valley, China.