A:Answeryes you can, with the help of siri. your headphones have the button option for you to ask siri for anything that siri can help with, including phone calls
A:AnswerYes there is a +/- controls on the headphone cable which is at the same location that the microphone is located at. Muting the microphone would be done from the mobile phone itself in the related application, such as the phone call app, FaceTime or Skype, etc.
A:AnswerNo you don't need an adaptor to use these with any bluetooth device. With the iPhone 7, this are enhanced in that you can simply open the case near your phone to start the binding process.
