The Trainer are compatible with the new guidelines from AHA2010 scenarios & operations Features: It is completely compliant with AHA new guidelines, and pre-configured with 10 training scenarios that simulate realistic sudden cardiac arrest episodes. The AED trainer is designed with a replaceable plug-in card allowing the device to be customized by uploading different languages and scenarios (optional). When guidelines are changed, customers only require a new plug-in card to update the scenarios. With different cards, one unit can offer different languages (optional).