Select a character to hear its sound. Choose “Full Screen Mode” to view the characters in a larger view. To exit this view, select “Exit Full Screen” Click the button to repeat the sound, the button to hear the previous sound and the button to hear the next sound.
These are the three classes of consonants. Select one to begin:
characters in a larger view.
button to repeat the sound, the 
button to hear the previous sound and the 
button to hear the next sound