Benefits and why you need it Improves endurance by strengthening respiratory muscles and increasing challenge during inhale and exhale cycles, helping you sustain energy during physical activities. Enables precise, gradual progression with two adjustable knobs for inhalation and exhalation tensions, supporting development from beginner to advanced levels in fitness or therapeutic settings. Offers adjustable exercise levels and realtime performance data to tailor training and monitor lung function improvements during workouts or rehabilitation. Portable and versatile for use in a variety of settings, including exercising, outdoor activities, or mindful breathing practice. Key features Two adjustable knobs provide control over inhalation and exhalation tensions for customized training. Realtime performance data to track progress and guide training intensity. Designed to strengthen respiratory muscles and elevate overall breathing endurance. Compact, portable design suitable for use across multiple scenarios and routines. 23 practical use scenarios Preworkout breathing routines during gym sessions to prepare the lungs and improve endurance for cardio and strength training. Outdoor activities such as hiking or trail activities, where portable breath training can support sustained effort and breathing efficiency. Mindful breathing or rehabilitation practices at home or in clinical settings, using adjustable difficulty to match your current level and gradually progress.