It is reliable. Guoguang Electric Co., Ltd. was formerly Guangzhou Guoguang Electro-acoustic General Factory, and its enterprise history can be traced back to the establishment of Guangzhou Guoguang Broadcasting Equipment Factory in 1951. Guoguang Company has been engaged in the design and production of electro-acoustic products since its establishment, and is one of the most systematic, professional and large-scale design and production bases of speakers and speakers in the world. On December 25, 1993, it was restructured and targeted to raise internal employee shares, and a joint stock limited company was established.