Philips HeartStart FRx AED Defibrillator – For those who get there first The HeartStart FRx defibrillator includes advanced Life Guidance features to help guide the treatment of sudden cardiac arrest. With easy set-up clear voice prompts and rugged design HeartStart FRx is designed for on-the-spot responders. The FRx defibrillator features Life Guidance intuitive step-by-step voice instructions including CPR coaching to help give responders the confidence that’s needed while treating a cardiac arrest. A clear calm voice and descriptive visual icons guide you through every step from pad placement to cardiopulmonary resuscitation (CPR) and shock delivery. The voice prompts are paced to your actions so that you don’t need to worry about feeling rushed overwhelmed or slowed down.