It is a cost effective aed and with very little maintainance cost as compared to other brand of AEDs. It is a portable electronic device used to diagnose and treat life-threatening cardiac arrhythmias, such as ventricular fibrillation and pulseless ventricular tachycardia. It delivers a shock to the heart to restore a normal rhythm. AEDs are designed for use by laypersons and are commonly found in public places like schools, airports, and government buildings.