The Heartsine Samaritan PAD is a biphasic AED. The AED is one of the few that utilizes an integrated pads/battery system. ***********************Project StatReview is an educational initiative to familiarize rescuers with Automated External Defibrillators (AEDs) that they may use in their workplaces, public locations or homes. The project provides a short video on how to power on the AED, an opportunity to listen to the provided voice prompts and how to deliver a rescue shock. These videos do not replace CPR/AED training, which is easily available through local training agencies. Project StatReview does not endorse one particular brand of defibrillator over another.