Is it possible to connect 2 sets of bluetooth headphones to the Tab S 10.5 so that on an airline flight, my wife and I could both watch the tablet, but listen through our individual bluetooth headphones?
Definitely possible, BUT most likely prohibited! Most if not all airlines prohibit the use of Bluetooth headphones while on the plane. Better option is probably a 3.5 jack splitter, available for less than 10 dollars on Amazon. Here's an example....
https://www.amazon.com/Belkin-Speak...ag=hawk-future-20&ascsubtag=UUacUvbUpU6293101
That's odd. I travel a lot and see people using bluetooth headphones all of the time. You had mentioned it's possible. Do you know how?