The Physio Control / Medtronic LIFEPAK CR Plus enables you to give defibrillation shock that could save a life once you determine the person isn’t breathing or conscious, you just: 1. Push the button to release the lid and turn on the defibrillator. 2. Pull the handle to get the electrode pads and adhere them to the person’s chest as shown. 3. Press the flashing button if told to do so (also available in automatic mode, which requires only steps 1&2). When you purchase the CR Plus, your automated external defibrillator (AED) will be backed by the best medical technology company. Because of its reputation for quality and reliability, nine out of the top 10 emergency medical services (EMS) in the U.S. use LIFEPAK defibrillators, and more LIFEPAK devices than other brands are in hosptials nationwide.