The Defibtech Lifeline Auto AED makes using an AED even easier without having to press the shock button. The Lifeline AUTO AED is a fully automatic defibrillator designed to analyze heart rythms and automatically deliver a shock—without intervention—if needed. The Lifeline AUTO AED includes all mission critical features necessary to provide the most advanced treatment for Sudden Cardiac Arrest. The Lifeline AUTO AED has a simple one button user interface, clear, calm voice prompts, brightly lit progress lights and actively illuminated status indicator. The Lifeline AUTO AED has a roomy handle and rubberized surfaces.