Today, I tripped over audio wire and broke the headphone jack at the front of PC. And, almost caused other damages, way way more than $5. So, I went out and bought that "$5 Bluetooth speaker" from Dollarama that Colin talked about.

bluetooth -- works.
3.5mm jack -- works.
microUSB -- only for charging.
only 1 speaker -- okay.

microSD -- presumably for audio files. Didn't test.
USB-A -- don't know what it's for.

The rubbery plastic smells, so I'm air it out in the garage.