1. Oral/nasal cavity intubation practice and demonstration
2. Electronic monitor: LED light and voice indication
① Inserting to respiratory tract, air feeding, lungs will be inflated, green LED light flash ② Inserting to esophagus, air feeding, stomach will be inflated, red LED light flash with alarm ③ Teeth pressure alarm when using of laryngoscope incorrectly, yellow LED light flash with alarm
