HooHa is a playful and also practical respiratory training device for children with muscular dystrophy. HooHa alleviates the tedium out of training daily. The component can be changed as wanted, and it rotates during exhalation to provide sensory feedback. By interconnected with the application, it provides more diverse gameplay options and feedback. The chip can accurately monitor changes in pulmonary function during each training session. The data will be used as reference for follow-up appointments. The device allows users to be proactive and develop a daily training habit before respiratory illness occurs, thus delaying deterioration.