Sudden cardiac arrest (SCA), often confused with heart attack, can strike any person, anywhere, anytime. In most cases, there are no previous symptoms. When someone collapses from SCA, immediate defibrillation and cardiopulmonary resuscitation (CPR) are essential for any chance of recovery. CardiAid Automated External Defibrillator (AED) is an easy-to-use device, specially designed for public access use, to provide life-saving electroshock treatment for a patient having sudden cardiac arrest (SCA) within the critical first minutes, until the professional care of the emergency medical services (EMS) is available.