Features: 1. Simulate standard open airway and sound prompting 2. External breast compression: indicator light display, digital counter display and sound prompting a) Indicator light display of correct and wrong compression position; digital counter display; sound prompting of wrong compression. b) Display of correct (at least 5cm) and wrong (less than 5cm) compression intensity; digital strip indicator light (yellow, green, red) shows compression depth; counter display; sound prompting of wrong operation. 3. Artificial respiration (Inhalation) indicator light display, digital counter display and sound prompting: a) Inhalation is ≤500ml/600ml-1000ml≤, strip indicator light shows inhalation volume; counter display of correct and wrong operations, and sound prompting of wrong operation. b) Inhalation too quickly or too much result in air entering into stomach, counter display and sound prompting of wrong operation. 4. Ratio of compression and artificial respiration: 30:2 (one or two person) 5. Operating cycle: one cycle includes five times of 30:2 ratio of compression and artificial respiration. 6. Operation frequency: at least 100 times per minute 7. Operation methods: exercise operation; examine operation 8. Operation time: counting down device 9. Print: print operation result 10. Examination of pupil response: mydriasis and myosis 11. Examination of carotid response: simulate spontaneous carotid pulse in compression process 12. Working conditions: Input power is 110-240V