Steps to control Samsung TV 3.5 mm jack audio output volume using TV Remote: Open the Tv using screw driver Remove/disconnect the internal speakers connector (highlighted in below image:) Cut out 3.5 mm pin from any old unused headphones and connect its wires in place of internal speakers connector. (preferably solder it if you have soldering iron) Refer to images below for wire connections for left and right speaker respectively. Close the TV From TV Settings Menu>Sound> Select TV Speaker for Sound output. All Set !! Connect the bluetooth/wired headset to 3.5 mm audio pin connected in step 4 and enjoy controlling the headset volume using existing TV Remote. You can use the 3.5 mm pin remote controlled output for your soundbar or external speakers as well as headset. OR Use the optical output for your soundbar or external speakers And 3.5 mm pin output for headset, so that at night you can just turn off external speakers and listen on headset !!! Obvio