The Philips HeartStart OnSite AED is a portable, lightweight (just 3.3 pounds with electrode pad cartridge and battery pack) automated external defibrillator available over-the-counter and it’s so easy to use. Its voice prompt system even has “on-demand” CPR coaching to help you remember all of the steps during your resuscitation effort. Do you need pediatric capability? No problem! The Philips HeartStart OnSite has optional pediatric electrode pads available.