Why should we refer to this tricks - invisible earpieces?

Answer is incredibly evident. To be better and more efficient than others - to overtake them. Either during exams, tests or other tortures for students, or while all sorts of business negotiations and conferences. All we know lots of circumstances when we need urgently help or authoritative opininions. We can apply invisible earpieces for this taks - they are invisible and they allows to get rapidly anything - infomation, data, ideas and suggestions - everything that use could ask from an expert by means of invisible communication.