same as with apple tv i up the volume button on my remote
they can output from apple tv use my ear phones to up and down volume
roku has a "way"
apple can be better
Remote: Built-in headphone jack, plus Wi-Fi Direct
The Roku 3's marquee feature is the remote's private listening mode: plug a pair of headphones into the remote's headphone jack and you can listen to whatever's playing on your Roku. Plugging in the headphones also automatically mutes...