Simplifies the rescue process by eliminating the need to press a shock button. All you do is attach the device to a person in cardiac arrest. Once the pads are attached, the device detects the person's heart rhythm, analyzes the rhythm using the patented RHYTHMx^® software, and if a life-threatening rhythm is detected, instructs the user to stand clear, and automatically delivers a defibrillation shock. Patented RescueReady technology includes daily, weekly, and monthly self-tests of Intellisense lithium battery, internal electronics, software, and defibrillation pads, ensuring first-time, every-time shock delivery. Incorporates the patented RHYTHMx™ analysis software and STAR^® biphasic defibrillation energy waveform.