A:AnswerHello Jim, To use 4 Roku Wireless speakers a Roku Streambar or Roku Streambar Pro is required (not the Roku Streambar SE) without one of these you can only connect two speakers and the subwoofer.
A:AnswerHello Dee, Roku does have parental controls but not that stop you from turning on the TV. For more information please visit https://support.roku.com/article/208755938
A:AnswerHello pac240354, the remote that comes with this tv does not have headphones but this model does have Bluetooth to connect wireless headphones.
A:AnswerHello TG, no Roku does not have a web browser built in. What you can do is cast your phone screen or computer to Roku through Apple Airplay, Android Smartview, or Windows Miracast.
A:AnswerHello Jay, These are Roku TVs made by Roku! They are designed and manufactured by our team and equipped with the Roku OS you know and love. Happy Streaming!