A:AnswerHello, This model does come with a voice remote but the voice feature only works while holding the button down. As long as you don’t press the voice button it won’t be listening.
A:AnswerHello DavidG, No there can only be one at a time through the TV, but you can have more headphones connected through the Roku mobile app's headphones mode. https://support.roku.com/article/217478308
