You can select the level: level 1 displays a letter and you hear it; level 2 does not display the letter, you only hear it; level 3 displays a syllable and you hear it; level 4 does not display the syllable, you only hear it.
Podes escoller o nivel: o nivel 1 mostra unha letra e lea; o nivel 2 non mostra a letra, só a reproduce; o nivel 3 mostra unha sílaba e lea; o nivel 4 non mostra a sílaba, só a reproduce. @ label: listbox