To facilitate friends in their production, I will share the related engineering files for the PCB design of Bluetooth speaker circuits on the Jialichuang Open Source Square, address:
https://oshwhub.com/qingmedia/shi-sheng-yi-hao-cun-dang-_copy
Open the above address, and the following page will appear. Click “Open in Editor”:
It will automatically open the project design with Jialichuang EDA, and you can directly place an order for PCB prototyping with one click: