Yes! If you're trying to fit in some extra language learning, but can’t play sound or speak out loud, Silent Study Mode comes in very handy.
Silent Study Mode automatically filters out questions and exercises that require listening or speaking -- so you can complete your session without a single sound. To turn Silent Study Mode on or off, click on the speaker icon at the top right hand corner before going into your lesson.
Remember to come back to the lesson again so you get in your listening and speaking practice!