Features：
1. Pregnant women upper torso, made of special silicon, lifelike skin texture, providing trainees with a realistic experience
2. By inflating air to adjust uterus size and adjustable embryo position
3. Standard skeleton structure, allows external pelvic measurement
4. Mammary care.
5. Leopold's 4-step Maneuver practice
6. The fetal heart rate ranges from 60 to 200 beats/min, stethoscope and outer speaker are optional, volume is adjustable