There is a vocal example with a male and a female vocalist demonstrating each exercise. Following the words “Ready? Begin.” a click track will give you the tempo. There is a vocal model to accompany the vocalist(s) for the first exercises, then you or your group continue until the end of the exercise. You can pause the audio, stop it or rewind and repeat the exercise.
The app allows you to choose the set that you want to work on, or to scroll to the specific exercises that you prefer to work on.