Dual Resistance Adjustment System - Thanks to the innovative bilateral resistance adjustment design, it can be customized to adjust different resistance values on both sides to meet the training needs of more people at different stages!
Safer & More Comfortable to Use - The mouthpiece of this breathing fitness trainer is made of higher quality medical grade silicone material, and the unique triangular anti-slip particle design makes it more secure when biting.
Lightweight & Portable - This breathe trainer weighs only 1.97 ounces. The overall design is ultra-compact and the small size is very convenient to carry. Suitable for more use scenarios such as fitness training, running, yoga, swimming, athletics, cycling and other high-energy sports!
Scientific Training Guidance - This breathing exercise trainer is very simple to use. Just practice two or three times a day with 10-20 times repetitions of deep inhalation and slow exhalation. According to tests, after about 30 days of breathing training, you will have the strength to blow up a standard-sized balloon with one exhalation!
What's in the box
1 x Breathing Exercise Device
1 x User Manual