In recent years, the smart headphone market led by Bluetooth headphone has grown steadily, and the headphone market landscape is undergoing dramatic changes. The headphone technology is precise and complicated and involves many processes. Its quality requirements are also very stringent. The traditional headphone production line test method is primitive and poor, and the test items are not comprehensive enough. This may easily lead to some quality problems, which cannot be monitored and then enter the next process. Our one-stop solution to headphone testing covers all the aspects of headphone production, including incoming inspection, PCBA inspection, semi-finished product inspection and finished product inspection. So stable solutions and reliable test results are available.