This device is suitable for those who are moderately active or any level of performing artist who wants to improve their breathing between phrases. In as little as five minutes twice a day, this can help you breathe deeper, reduce breathlessness, and build endurance for any activity. If you find yourself exercising at least two to three days per week in low intensity activities like walking, fitness swimming, or yoga, you will find the this device is optimal for your needs. Adding this model to your exercise program can help improve your activity endurance. Performing artists who feel they are experiencing difficulty supporting their sound or projecting their voice will find the this device is an excellent choice for improving their performances. Learn to breathedeeply while maintaining good form from the simple daily exercises with this model. Recommended for Ages 10 and Up