In a Voith Schneider propeller, there is one power input (as in a rotating shaft) plus a second shaft input that gives the desired thrust direction, and a complex gearbox that drives all the blades and the collective. These are in wide use in tugboats and the like, desired for their ability to output thrust in any direction at a moment's notice. However, their disadvantages are that they are less efficient than traditional propellers, and they don't scale up to high revs or high power output all that well, because of the gearing and the mechanical losses involved.

In this design, there is one large electric motor that drives the collective, and an individual electric motor at the base of every blade. The claim is that this gets you the maneuvering advantages of a V-S, while not suffering from the same disadvantages, and because of better control over the blades is not just more efficient than a V-S prop, but more efficient than traditional screws. And in theory it should scale as big as you want it, which would genuinely make it a significant advance that would see fairly rapid adoption.

That's if it actually works in practice, the only prototypes so far are very small and you don't really know if something scales until you actually scale it.