is the ability to funnel its audio through a 3.5mm jack on the remote (if it has it) or through your phone's connected headphones if you use the Roku app for remote control. This is an awesome and badass feature and it sucks it's not really prioritized.
Like my Roku TV can only do it for Roku apps, and won't funnel audio from any input, which would be objectively awesome to do. I JUST WANT TO WATCH MY SHOWS ON A GOOD TV AT NIGHT WITHOUT WAKING UP THE ENTIRE HOUSE