Galaxy S9 to support the S8's LTE bands, have the same 'tuned by AKG' headphones
While that's just a band short from the current record holders - Apple's iPhone crop, whose Japanese models support 25 - it's still the same number of bands listed for the S8 as well. This generous number of LTE frequencies that the S9 will support means that the unlocked version can be bought directly from Samsung, and brought to any carrier in the US, including Verizon and Sprint, just as we can with the S8.
Another piece of new info, besides the EV-BG960ABA battery, which just happened to leak today as well, are the headphones that will likely be bundled with the S9. The FCC lists them as EO-IG955, and these are the same "tuned by AKG" buds that can be found in the Galaxy S8 and Note 8 boxes as well. They are pretty good buds for the price of free, so we won't complain. The fast-charging cable listed is also the same one from the S8, so we can expect similar blazing charge times, and, last but not least, there will be a microSD card slot... surprise, surprise.
source: FCC (PDF)