美国采购需求：10.1英寸，COB UART液晶模块

I'm looking for details on how to expand the FLASH memory for your product. Could you provide information on the types of chips available and how to utilize the additional memory within DGUS? I have large video files that I'd prefer to read dynamically from an SD card, as it offers virtually unlimited storage for my needs. Is this functionality supported? Additionally, I'm interested in replacing the standard buzzer with a speaker for audio playback. Do you have guidance or an application note on how to modify the setup to connect a speaker instead? Your insights would be greatly appreciated as I work on my project. Thank you!