Found a feature on the Classified HISS tank, I haven't heard about yet. If you press and hold the button, it goes into a demo mode of sorts, All the lights come on, including the interior light, for a few seconds and then turn off. This repeats every 15 seconds or so.
Are there any other secrets this thing is hiding?
That's a neat little feature. Does it keep going until you shut it off, or does it eventually turn off on it's own?
There are probably a few other unknowns that will eventually be discovered.