Feature(may vary by option.)
●Specifications: Size: 3.9 x 2.0 x 1.2 inches (10 x 5 x 3 cm)
●【High Quality】Material: Made of high quality silicone material, non-toxic, odorless, non-toxic, environmentally friendly, safe to use
●(Breathing Muscle Trainer) Treat the airway trainer as a lung fitness center. Train lungs and respiratory muscles to improve lung capacity and endurance
●(Adjust the amount of air you intake) This breathing trainer can adjust the amount of air that is intaled to improve daily breathing health, and increase endurance and lung capacity. The breathing trainer uses multi-level resistance wheels to reduce the amount of air flow through your lungs and forces you to breathe more concentrated and deep
●【Wide Range of Use】Suitable for various occasions such as swimming, diving, surfing, running, fitness, traveling, etc. Our products are durable and easy to use. It fits all mouth shapes and is completely sealed, convenient to use
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Description
It is used by many genres such as walking, people lack of exercise, athletes such as cycling, swimming, mountain climbing, long distance runs, and singer who want to produce treble and musicians. Take your breathing workout while you are at home, on the go, or on the go.