A:AnswerHi Grubble! To connect wireless headphones you would need to connect a wireless transmutter for your headphones to the Audio Out port on the TV (optical or Stereo L/R) The USB port would not be able to be used for this.
A:AnswerAll VIZIO manuals can be found on the VIZIO support site and just search for your model number. The manual can also be accessed from your menu inside the television.