The Phillips HeartStart On-Site AED Defibrillator is designed for the ordinary person in an extraordinary moment. The first and only AED available without a prescription, the OnSite is designed to be the easiest to set up and use and the most reliable defibrillator available. The innovative technology, based on extensive research and user feedback, has produced a defibrillator so easy to use that it can be used to treat infants, children as well as adults with sudden cardiac arrest. Weighing just 3.3 lbs/1.5 kg, the HeartStart OnSite Defibrillator is small and lightweight. Using clear, calm voice instructions, it guides you through each step of defibrillation, including CPR coaching. Integrated SMART Pads placed on the victim?s bare skin sense and adapt the defibrillators instructions to the users actions every step of the way. The Philips HeartStart OnSite AED examines cardiac-event victims and guides inexperienced bystanders in cardiopulmonary resuscitation techniques, by administering shocks at the right time to get hearts pumping again. The HeartStart On-Site AED Defibrillator includes 1 pre-installed battery, 1 pre-installed SMART Pads Cartridge, Quick Set-up Guide, Maintenance Booklet, Quick Reference Guide, Owners? Manual and slim carrying case.