SAM system combines a small microphone, resonance chamber in soft material and a diaphragm to form a micro sound collection device. The diaphragm collects the sound through the vibrations on the skin surface and then passes to the microphone. Through the collection system, it can predict the asthma symptom onset and record its attack frequency; when the situation occurs, the emergency care system would be initiated and send messages to caregivers through Wi-Fi or Bluetooth. The sound receiver provides comfort touch of human skin. Easily, the microphone can be pasted on the neck or the heart area for sound collecting.