German CEO-PA electronics science & technology CO., LTD is the unit which produce and sales the public address system service goods. We use the advanced software skill for national & International and refer to the "ISO9001 certification " system when we design, choose material, produce and quality control, Meanwhile we have passed the " 3C certification" of CHINA , "CE certification " of Europe and ,"CQC certification " of CHINA quality control .Also ,we hadthe honor to win the title of "Quality Stably" and " Nation Quality Excellent Goods ". Now ,we exploit CEO-PA Public Address System(CE series broadcast system ,DCI intelligence system, multi Audio broadcast system and Digital control broadcast).It is welcome widely used in Public area such as garden ,open space ,intelligence building hotel ,factory, school area, Bank etc.