This is a compact and portable adjustable health accessory from AIRFIT. Brand and Model: The AIRFIT Airfit Active is a device designed to support breathing training. It can be expected to improve respiratory function, especially in sports and fitness. [Included Items] This product comes with a dedicated case, making it convenient for carrying and storage. A quick guide is also included, allowing you to easily understand how to use it. [Functions and Benefits] The Airfit Active allows you to perform training to improve the quality of your breathing, making it very useful for athletes and those who are health-conscious. - Brand: AIRFIT - Color: Black/White - Function: Adjustable settings - Design: Compact and portable This item is used. Thank you for viewing.