Whats littman cardiology III or master classic ii?

Stethoscope . they are stethoscopes, used to examine - listen to body organs by medical care providers.
Different types. These are all different types of cardiology stethoscopes. .
Stethoscopes. different types of stethoscopes - devices for comfortably listening to body sounds, like heart sounds.
Stethoscope . It refers to the stethoscope's model.
Stethoscopes . Different models of stethoscopes. .
Different types. They are 2 different types of stethoscopes. Cardiology III supposed to have better acoustic than the other one.
Stethoscope . These are advanced hearing devices to hear ( auscultate) heart sounds, called stethoscopes.
Stethoscopes. Both good (i use the master classic ii).