CALM Electronic Co., Ltd. combines with researching, developing, manufacturing and marketing. We develop all our products ourselves and own the patent No.200720048408.1, which is proud of us, and in July 2008 through the CE certification. Our company is located in Third Floor yijia Industrial Estate, QiXingGang, NanCun,PanYu,GuangZhou,China, covering a total area of more than 2,000 square meters. More than 80 production line staffs, 13quality inspection (QC IPQCQA) , and 7 R & D ...