AED (automated external Defibrillator), also known as automated external defibrillator, Automatic Defibrillator, Cardiac Defibrillator and Stupid Defibrillator, is a portable medical device, which can diagnose specific arrhythmia and give electric shock defibrillation. It can be used by non-professionals to rescue patients with cardiac arrest. In the case of cardiac arrest, only in the "golden 4 minutes" of the best rescue time, using AED for defibrillation and cardiopulmonary resuscitation is the most effective way to prevent sudden death.
Since AED can be called "stupid defibrillator", it shows that its operation is simple and convenient, and most people can follow the prompts as soon as they get it.