Abstract: A voice therapy device including a body having an internal passageway with a longitudinal axis that defines an airflow direction; a mouthpiece positioned at a proximal end of the body; and a resistance portion positioned at a distal end of the body, where the resistance portion is adjustable to vary an airflow resistance through the internal passageway. In some embodiments, the voice therapy device includes a sensor electrically coupled to a processor. A system for voice therapy includes the voice therapy device and a software application.