I think the fastest way at present is indeed to make an explanatory video. This can clearly demonstrate the working principle and interaction mode of this device. I can also clearly explain my methods for handling pictures and audio. If I have the chance to do it again in the future, I should shoot a video that matches it and has a touch of novelty.

https://drive.google.com/file/d/1GH-A2Jv8b-zRCwU_LDIes_O-FTDR_AX8/view?usp=sharing