Practice makes perfect and the PhonOcord makes practice both more constructive and more fun. Dramatic students can record their lines, then play them back, to measure their success or failure. Or they can record dialogue from a well-known play as done by a professional on the radio, then record their own version of the same dialogue and compare their interpretation with that of the more experienced player.
Students of music can improve their techniques by similar methods. Actors and musicians can benefit from hearing themselves as others hear them.
Business men who are called upon to make speeches, can rehearse their speeches on the PhonOcord and determine in advance whether they are "putting it over."
Debaters, even tap dancers will find that recording as they practice can make the difference between a mediocre performance and an outstanding one.