NEW BREATHING TRAINING DEVICE - The equipment adopts intelligent AI algorithm, which can accurately measure the breathing value, and record up to 56 measured data with APP. PRODUCT ADVANTAGES - Our smart equipment is exquisite and small, suitable for daily carrying, and can be used for measuring the breathing value and counting, or as a breathing training device.HOW TO USE - Press and hold the button on the side of the device to turn on the device. It can be used directly when the screen is lit. The color lights on the screen will change color until the end of use. Each use data will be recorded in the APP. When the screen is off, you need to press the key once to open the screen before you can use the device. When you don't need to use it, you can press and hold the button on the side of the device to turn off the device.ADJUSTABLE RESPIRATORY RESISTANCE - The two ends of the equipment are respectively the exhalation port and the inhalation port, as indicated by the port arrow. Three pairs of (ABC) detachable breathing nozzles with different respiratory resistance are provided, and the equipment is equipped with model B breathing nozzle by default. Our breath training device comes with a 200 mA battery, small volume and large capacity. It can be used for 6 months after charging for 1 hour.We recommend using 5-10 minutes a day. The specific use time can be adjusted according to your own situation. After downloading the free APP, you can also view the training tutorial videos in the APP. This is the best unique gift for people who need breathing exercise. This is the best unique gift for International Working Women's Day, Tree Planting Day, St. Patrick's Day, Easter Day, Student Return Season, Father's Day, Mother's Day, Christmas, personalized birthday gifts, wife's anniversary gift to husband, children's graduation gift, teacher's gift, etc. Tip :If you experience symptoms such as dizziness during training after switching to a mouthpiece with greater resistance, please take a break, switch to a mouthpiece with less resistance, practice for a period of time, and then try blowing with a mouthpiece with greater resistance.