TweetUmmm....I'm going to have to call BS on that. How can a microphone that is not powered up receive anything? That just doesn't make sense to me. If that was the case, then the phone would lose power even when turned off. Also, I have a flip phone and people can't hear a thing I'm saying when the phone is slipped down. This must be something that worked on old school phones because it doesn't make sense on new phones.