Designed for unexpected heroes, the AED 3 Semi Automatic Defibrillator guides you through the process of performing high-quality CPR and will, if needed, deliver a potentially lifesaving shock to the victim's heart. ZOLL's proprietary Real CPR Help technology uses the most recent guidelines for depth and rate of compression to help guide rescuers in performing high-quality CPR for a victim of sudden cardiac arrest. AED's integrated real-time feedback eliminates guesswork. It provides visual and audio prompts to "Push Harder" or will let you know when you are doing "Good Compressions," keeping rescuers on track to administer high-quality CPR. In addition to full-color rescue images, text and real-time CPR feedback, the AED 3 screen also includes one-of-a-kind intuitive touch -screen capabilities for quick access to information and configuration. Universal design of the CPR Uni-padz electrodes gives rescuers a single, versatile solution for both adult and pediatric victims.