... disarm the alarm by press DISARM button casually. After 20 seconds when this situation happens, if the car does not start, car system ... , and restart ARM condition.8.Shock trigger alarm.Under ARM condition, if the car system received shock signal, the speaker will ... 5 times. Within 10 seconds, if the car be shocked again, car alarm will continue sounding. CAR ALARM SYSTEM(one way/two way available)