The Philips HeartStart FRx Defibrillator was designed to be safe (it will only deliver a shock if it

determines the patient requires one), reliable and very easy to use. It is light and small, about the size of a hardback book. Designed for environments and conditions too demanding for many other defibrillators including law enforcement, outdoor use in bad weather, industrial sites, building sites, powerplants, rescue services etc. the HeartStart FRx is also suitable for use in many other locations.