Status: Listed Brand: Yunzhongfei Technology Photo Source: KeyShot 9 Rendering This is a sleep breathing detector made last year. It is the most painful project. At that time, it was changed over and over again for this project and played many times. The main purpose is to realize the function. The shape of the nose should be more in line with the function of airflow detection. Therefore, it is hard to look back to modify the past again and again. The picture is for reference only, please follow the actual purchase. Those who embezzle or forward pictures without permission must be held accountable. If there is infringement, please contact me