Eustachi unblocks plugged ears by helping exercise the eustachian tubes; all you have to do is swallow! It's quick, safe, and easy to use. Eustachi works with your body's natural mechanism for clearing your ears. Swallowing and yawning normally clear your ears. When swallowing isn't enough, the Eustachi helps using just a little air. Recommended and used by physicians, parents, chiropractors, airline pilots, scuba dive instructors, cold and allergy sufferers, and more. Includes Carrying Case. Requires 2 AA batteries (not included) Use as needed for the general physical conditioning of the Eustachian tube system. Blocked Ears, Ear Discomfort, Clogged Eustachian tubes, Allergies, Colds, plugged ears, stuffy congested ears The Eustachi is a medical device that is indicated for the treatment of negative middle ear pressure. As with any exercise or conditioning product, consult your healthcare provider with any medical questions. Made in China Hold the Eustachi firmly against a nostril opening - creating a tight seal. Plug the other nostril closed. Press the Eustachi power button to start the airflow and help to open your Eustachian Tubes by swallowing while the Eustachi button is pressed. Repeat if needed in other nostril. *Legal Disclaimer: The Eustachi is not a medical device and is not intended to treat, cure or diagnose any disease. As with any exercise or conditioning product, consult your healthcare provider with any medical questions. Statements regarding dietary supplements have not been evaluated by the FDA and are not intended to diagnose, treat, cure, or prevent any disease or health condition.