Descripción
- Reduce breathlessness and increase lung capacity by strength-training your respiratory muscles,Great for athletes and those who suffer from shortness of breath
 - Simply use it for about five minutes a day(equal to 30 times' breathing)
 - Small and compact, you can take it anywhere
 - It can be used by almost anyone with no side effects
 - Three adjustable step for your choice: weak, medium and strong
 
Abdominal breathing exerciser is a breakthrough product for respiratory fitness training, works to improve the strength of your lungs and slim your waist, face, and reduce abdomen.