• FOR MOST PEOPLE:with adjustable dials for independent settings for inhalation and exhalation It allows you to breathe easier and promotes better sleep quality.
• EASY TO USE and CLEAN ：it is a "natural" solution breathing exercise take it with you wherever you go. Small in size, you can put it in your pocket to use anytime you want. Breathing Device for Adults, the Elderly, Smokers, Swimmers & Deep Sea Divers, Athletes, Singers, and Wind Instrument Musicians .. Just need to use it once or twice a day for 5 to 10 minutes.
• SIMPLE, SAFE: This Breathing Exercise device is preferred by all most to improve the strength and endurance of respiratory muscles and reduce shortness of breath. This strengthens your breathing muscles by working harder. This is called Inspiratory Muscle Training and is practiced this way around the world.
• USER INSTRUCTIONS:put the effort in to perform the technique correctly ,carefully read the manual sheet in the package before use it .Syberwell musle trainer x1 | Different Mouthpieces x2 | bag x1| Manual x1
• BUYER SUPPORT : We would love to hear from you! Our team is dedicated to providing the best experience possible, and we welcome any questions you may have. Please feel free to reach out to us.

• Package Dimensions ‏ : ‎ 5.59 x 3.23 x 1.61 inches; 4.76 ounces
• Date First Available ‏ : ‎ March 14, 2023
• Manufacturer ‏ : ‎ ZHEJIANG FERT MEDICAL DEVICE CO.,LTD.