The goods is designed as a universal model, three different size bell-shaped chest audition end , is attached the original two patches. Whether big or small, each patch is in a form of bell seat, which can be used as per the user's specific request.
Dual function Fanning audition end can help the user detect low-frequency heart sounds,expansionsound and a third expansion wheezing sound.Also, it can detect sounds of the weans.
