Some TVs audio output are fixed, which hands over the responsibility of volume control to your speaker.
That's not just a pity, but a significant downside to the TV. I love it, but this has knocked the wind out of my initial enthusiasm. I bought a pair of Apple Airpods to use with this, and lo and behold, can't do it, because Samsung "hands over the responsibility of volume control to your speaker" (or headphones, in this case)..
My statement to Samsung? You lost what would have been an unqualified thumbs up one the KS 9000 for this. Are you going to fix it - i.e., give us the ability to control the volume to bluebooth speakers and headphones?
EARPODS VOLUME FIX: I have a SAMSUNG 4K MODEL UN65NU8000 TV. To control the volume on your AIRPODS do the following:
2) General Expert Settings
4) Multi-Output Audio: Set to OFF
Now your volume will be controlled by the remote Control for your EarPods.