This weekly report from an engineering workshop group discusses their progress on a product design project. The report provides an overview of the group members and their roles. It describes the concept of the project as an appliance with a power supply, amplifier, and controller to provide 4 modes of an air purifier. The engineering team is analyzing the functions of modules like the MP3 and SD card. They encountered a problem where the signal from the SD card was not available during a real test. Their next steps are to work on integrating each section and improving the sound quality of the connected speaker.