Lung Breathing Training Device，Breathing Training Device Portable Adjustable Resistance Lung Exerciser for Daily Care and Exercise，Athletes, Sports Lovers

Highlights

• 【Build Muscle Strength】---Our muscle trainer helps improve throat muscle, requiring greater strength, thereby enhancing muscle strength.
• 【Food grade sili one】Ultra-flexible food-gradesilic one, soft and flexible，Bite design fits the oralcavity and has stronganti-slip performance.
• 【Easy Use】Breathe in slowly through your mouth, as deep as you can. Hold your breath for a few seconds.Slowly exhale through your mouth until completely exhaled.
• 【Improves Overall Performance】This well-built device is great for improving exercise tolerance and enhancing your performance day by day.Good choice for athletes, singers, smokers, etc.
• 【Wide Application】Breathing trainer exerciser is small in size for easy to carry, which can be used for adults, seniors, children, swimmers, athletes, singers, etc.