So:
1. the eartips are too hard, they do not adapt to the ear!
2. the stethoscope is not anatomically correct shape, it difficult to examine, in addition,
3. the stethoscope is substandard ....
To work with stethoscopes at the hospital routine, I recommend depending on the issues, stethoscopes the "Littmann family"
These are useful especially for medical and nursing staff