I’d need something like the WTV020-SD. Link goes to Aliexpress.
The WTV020-SD is small, it has a slot for a micro SD card and it plays sound files. An Arduino somehow picks which sound file to play. That’s all pretty clear.
But I’d like to know if you have any suggestions for alternatives to this board. It should be very small, like this one. This particular board seems to be deprecated, though it seems to be available in the Chinese market.