mobile phones or juice?
I'm not an expert, I just didn't know they came in variations.
( spangolin - the odds are good but the goods are odd, Mon 15 Jun 2009, 15:01, archived)

I honestly have no idea
I just remember the ones from the marching bands. It's what the word "cacophony" was invented for.
( Lord Gnome, Mon 15 Jun 2009, 15:03, archived)