https://www.cnet.com/news/the-galaxy-note-9s-s-pen-may-help-you-take-pictures-or-play-music/

The Galaxy Note 9's stylus may be in for a big upgrade.

The S Pen may act as a Bluetooth controller for the Note 9, which could give it all sorts of new functions from controlling music to taking pictures. The rumor was shared online by mobile tipster Ice Universe, who has a record of leaking info on upcoming Samsung phones (via SamMobile).