MED's recertified Zoll's AED Plus features Real CPR Help, a tool that is able to actually see what you are doing and provide feedback to help you do it well. Audio and visual prompts help you rescue with confidence and clarity, unmatched by any other automated external defibrillator (AED). The Zoll AED Plus will tell you when to push harder or say "Good compressions." A metronome will lead you to the right rate and it will even show you the depth of each compression in real time. The AED Plus will tell you again to get started. In addition, the Zoll AED boasts support for the complete Chain of Survival, help to all victims of SCA, even those for which no shock is advised, a one-piece pad for fast and accurate placement, consumer lithium camera batteries commonly available from retail stores, intelligent pediatric capability, Zoll’s Rectilinear Biphasic Waveform, total AED Program Management with En-Pro, and Guidelines 2005 Ready.