Implement standard: AHA (American Heart Association) 2020 guideline for CPR and ECC
1. Simulate standard open airway
2. Support training in artificial respiration and external chest compression
3. Compression Frequency: 100-120 times/minute, take the “tick” sound as the sign, and the compression depth should be 5cm - 6cm.
4. The inflated tidal volume can be observed by the chest rise, commonly it should be 500-600ml.
5. Power supply: power adapter
