Guangdong Stonesonic Digital Technique Co.,Ltd. Is a leading company in China Specialized in manufacturing CCTV monitor.The company occupies a total area os 40600 square meters with advances automatic producing equipment and testing apparatus.The company takes hte lead in the industry in passing the quality certification of ISO9001:2000,and also obtains ROHS, CCC,CE,FCC,FDA,UL successively.The products are sold to nealy 80 contries and areas. welcome to cooperation with our company.