A:AnswerHello Cluelessdl, This remote is for Roku TVs and devices only. If your Philips TV is a Roku partnered TV or has a Roku device then yes it will work.
A:AnswerHello PaulN! Yes, the Roku Voice Remote Pro (2nd edition) supports private pairing. When you pair it to one Roku TV through the settings menu, it won't control the other TV so you can change channels on one without affecting the other.
A:AnswerHello, No there is no headphone jack on this remote but you can always use the Roku Headphones Mode on the Roku Mobile App. Here's how https://support.roku.com/article/217478308