A:Answerwe charged it overnight, since it was late when we bought them anyway. You have to hold down the middle button for a few seconds and then it will power on, then again when powering down.
A:AnswerThey fit me perfectly but im a 5ft 3in female. However, my husband has a pretty big head and they fit him on the most extended adjustment but barely.
A:AnswerYes. I bought if for a 4 year old. You might want to consider getting protection plan cos it breaks easily. You can use aux cord or Bluetooth. Last long on a full charge.