Our company has passed ISO9001 quality system certification. Our goal is to provide customers with high quality service and standard internal operation to achieve international business management level; for further quality assurance, current we have more than 30 QC staff in the production process at each stage of the product strictly checked. In addition to purchase a large number of test equipment, including X-ray fluorescence spectrometer, constant temperature and humidity box, 6151 electro-acoustic tester, key life tester, insertion force testing machine, vibration tester, headband expansion test machine,Wearing torque testing machine, Wire swing tester, high and low temperature test box, salt spray test machine, drop test machine, waterproof tester, the second element image tester, carton compression tester to ensure product reliability testing, which can not only make sure the quality of products, but also meet the market requirements.