"The tweet describes it as something big, so would this even be a set of new earbuds? I do not think so. Could it be a new headset? Again, I do not believe so, since we do not have any new model codes apart from the WF-1000XM5, YY2963. Of course Sony might just unveil something new and then have it appear on the FCC or other certification websites, but this would mean a complete change in Sony's procedures. "