Specifications:
*Easy to wear and operate 
*Convenient to carry 
*Good sound performance 
*Prevent punctured ear drums 
*Comes complete with diaphragm and non-chill large bell 
*Ergonomic design, comfortably fit the listener\'s auditory meatus 
*Suitable for hospitals, schools,clinics or home use 

Note: 
1. Please keep the stethoscope clean to ensure good sound performance. 
2. Make sure every part of the stethoscope is not loose. 
3. Switch the receiver mode to avoid interference. 
4. Storage humidity shoud be limited to no more than 80%RH