GuangZhou leizhisheng Electronic Technology Co,.ltd is a professional manufacture of all types of conference system ,PA system ,integrating development and production together, our factory located in JiangGao town ,baiyun district, Guangdong, China .our main products include amplifier, indoor and outdoor speaker. Our company was established in 1994.and we have many years of history in the conference system, PA system. Our company employs more than 400 workers ,through the efforts of our ...