Features：
1. Realistic anatomical structure, life like texture. Including tongue, oral pharynx, epiglottis, throat and trachea
2. Intubation through oral/nasal cavity
3. Simulating infant head movement
4. Blow to inflate lungs or stomach to verify intubation position
① Inserting to respiratory tract, air feeding, lungs will be inflated
② Inserting to esophagus, air feeding, stomach will be inflated
