Interesting.....
That is a china pole, as seen here:

Nothing wrong with that as such, but any one of us could order directly from them for half the price probably.
But the tubeless part, well I found it hard to concentrate on it becuase of that accent, but as I see it it works like this:
There's a connector at the bottom of the smallest pole section which sticks out a bit when the pole is collapsed, and when you attach the hose, you are actually plugging it in to that section.
So when you extend the pole, it draws up the normal microbore hose from the hose reel.
I have to say, that's a good idea. But it does mean you can only connect/disconnect the pole when it is fully collapsed.