Heart disease is the second high in fatal cases, most of them are related to ventricular fibrillation which can cause fatal in minutes. Cardiopulmonary resuscitation (CPR) with aids with automated external defibrillator (AED) will increase the chance of resuming normal heart beats. AEDs are commonly used in airports, railway stations, housing estates and schools, etc. In order to maximize the applications, AEDs should be operated by trained first aiders. This course is intended to strength the skills in operating AED for the competent first aiders.