Not noise cancellation. Not at all.
As noted above. This isn't noise cancellation. Noise cancellation on open spaces is astonishingly difficult, and it only works in headphones because the distances involved and the acoustic environment is so small. (And why the heck does everyone think Bose invented this either?) Once you have a reverberant field you are pretty much sunk.
You have been able to buy noise blanketing systems forever. Before they were electronic, a wire brush rotating inside a metal cylinder made for a very effective white noise generator.
All this offering is is an expensive way of making the noise source an IoT device that looks cool. There is no real technical innovation from the actual acoustics point of view over something you could buy 50 years ago.
Biting the hand that feeds IT
