Product Description HeartStart OnSite (HS1) Trainer The HeartStart Trainer provides a realistic training experience for the Philips HeartStart OnSite and HeartStart Home Defibrillators. Clear, confident voice instructions that provide easy-to-follow directions and pre-configured scenarios make training students easy and more rewarding.The HeartStart AED Trainer simulates how the HeartStart OnSite Defibrillator will operate during a real-life cardiac arrest event. Features: Voice instructions match those of the HeartStart OnSite Defibrillator Works with internal and external pads adapters, allowing the instructor to provide some or no clues toward pad placement; resulting in the most realistic training scenario Resembles the HeartStart OnSite Defibrillator, yet is sufficiently different to avoid inadvertent use in an actual emergency Training for both adult patients and children CPR coaching helps train students in adult and infant/child CPR Uses four standard AA cell batteries (not included) allowing you to manage training costs Dimensions: 2.8" H x 8.3" W x 8.3" D Includes: Nylon carry case One set of reusable adult training pads One External Manikin Adapter Strip Eight preconfigured scripts based on common training scenarios