JINYU WHAT IS A LUNG EXERCISER It is an exercise device and is the BEST way to STRENGTHEN breathing (respiratory) muscles while opening airways, both for inhaling and exhaling. Playing musical wind instruments work for exhalation only. Everyone needs the BreatheEasy because everyone needs OPEN AIRWAYS and BREATHING MUSCLE TONE. HOW DOES IT WORK The Lung Exerciser works by creating a restriction to breathing that you can adjust, making you use your breathing/abs muscles to exhale and inhale. Also during the exhale exercise, your lungs may open up, reclaiming hidden capacity. WHAT IS IT NOT It is not a device. It is not intended to diagnose, treat or cure any disease. Ebook is for educational purposes only. Always consult with your professional before making any changes to exercise, diet or lifestyle. Affordable, simple,pocket-sized, easy-to-clean, fully variable Lung Exerciser Breathing Training Device. The is INFINITELY VARIABLE for inhalation and exhalation. HOW TO USE FOR INHALATION: Inhalation uses diaphragm rib cage muscles. With air full open, inhale deeply, more than you ever thought your could, then try to inhale even more. Do this again and again, with every breath, for as long as you want whilewatching TV, waiting in traffic or to pick someone up, or while walking, etc... Because youre deep breathing, youll never feel short of oxygen. The result is not only natural deep breathing, but relief from stress and anxiety FOR: High Performance Athletes, Pilots, Acapella Singers, Musician, Limited Mobility, Respiratory Muscle Training. Also use to reduce anxiety stress (meditation). Because it is pocket-sized, youre more likely to keep it with you for spontaneousbreathing training/relaxation sessions. No hot, smelly, sweaty running mask or altitude training mask, no bulk to carry. Fits in a pocket or purse, leave one in the car (dont use while driving), your suitcase, and your bathroom Delivery Quantity: 2pcs Package Contents: Only the above package contents, excluding other products. Size: 10*5.5*3.5cm (Reminder: The size is measured manually, please allow 1-2 cm measurement error) Color: black and white (Due to different monitors and lighting effects, the actual color of the item may be slightly different from the color shown on the picture.)