الطبية ديسبوسبل ابره وتر 100 21g

Adopting new kind one-side sound button with patent designSpecial sound collection with negative camber and washer Equipping with high precision membrane and y type tube(B type) durableSpecial material like soft ear plug and providing different kids of colorsSpecificationFlat shaped head is used listen low frequency heart sound extended sound, the third heart sound and the first and second heart sound YUWELL, STETHOSCOPE, SILVERFeatures :Adopting new kind one-side sound button with patent designSpecial sound collection with negative camber and washer Equipping with high precision membrane and y type tube(B type) durableSpecial material like soft ear plug and providing different kids of colorsSpecificationFlat shaped head is used listen low frequency heart sound extended sound, the third heart sound and the first and second  heart sound