Tosyeason is a professional audio, video, lighting and conference system manufacturer and a national high-tech enterprise integrating R&D, production, sales and service. The Company is located in Panyu, Guangzhou, the “China Audio Capital” of the Pearl River Delta. In addition to the Company's headquarters, the Company has research and development institutions in Xiamen University and Shandong Weifang High-tech Development Zone. It also controls or holds shares of a number of manufacturing plants. The Company's products include intelligent display system, audio system, intelligent lighting system, digital conference system, simultaneous interpretation system, paperless conference system, integrated interactive conference application, and total solution of multimedia information visualization system.

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At present, the Company's PLEXUS branded digital conference system, paperless conference system, distributed control management system and audio system are widely used in more than 30 provinces, municipalities and autonomous regions in China, as well as 20 countries and regions all over the world. They have been successfully applied to the 20th World Tourism Organization Conference of the United Nations, the 3rd United Nations Small Island Countries Development Conference, the 11th Session of the WCPFC Committee, the APEC Summit, the AU-EU Summit, the first Youth Summit of the Asia-Europe Meeting, China-Africa Cooperation Forum Johannesburg Summit, Youth Connect Africa Summit 2017, 2017 Second World Mazu Culture Forum, 2018 Fifth World Buddhist Forum, the 5th Summit of the 2019 Conference on Interaction and Confidence Building Measures in Asia, the 2019 SCO Summit and other major international conferences. PLEXUS audio and video systems have become one of the most competitive brands in the global audio and video system market.


Tosyeason devotes itself to the research and development of technology in the field of audio and video conferencing. The Company has independent intellectual property rights in the core technologies, including the development of FPGA, DSP, H.264/H.265 encoding algorithm of audio and video, multimedia interactive conferencing, multimedia data visualization and so on. At present, there are 20 professional developers in software and hardware development, including structural design, FPGA, DSP, ARM development, software engineers, test engineers, UI engineers and so on.

The company's products include audio system, digital conference system, intelligent lighting system, paperless conference system, integrated interactive conference application, and total solution of multimedia visualization system. It can provide different solutions for international convention centers, stadiums, public security organs, the CPPCC, healthcare, education, finance, transportation and other industries.