Sadly we didn't quite have time to test them....

However you may like to know the test we had in mind :

I got downstairs after installing Qt and realised my laptop had retained the ssh connection into the device so we dug around and were all ready to upload a recording of johnx saying "I want to eat a cat" or something equally obscure.

The acceptance criteria for "good speakers" would have been if we'd been able to see them actually jump out of their chairs