This is a ridiculous device installed in the restroom at Chiba City Hall. It seems to be meant for explaining how to use the toilet in different languages. But first of all, it’s hard to even understand what this device is for, and using flags to identify languages is just not practical. For example, just because it’s the Chinese flag doesn’t mean the person understands Mandarin.
When it comes to something like toilet instructions, simple pictograms would be much easier to understand. These days, it’s so easy to just take a picture of the Japanese text with your smartphone and translate it into your own language, so wouldn’t just having Japanese be enough?