These flexible, realistic trainers prepare students to operate a variety of different AEDs in the event of a sudden cardiac arrest. Each trainer features a replaceable scenario/language module for easy upgrade anytime AED protocols are updated, so there's no need to send the unit out for reprogramming or to buy a brand-new unit. The unique pad system with embedded switch senses when the pads are attached to a manikin, adding a new level of realism to training. Each trainer also features five preprogrammed scenarios, clear voice prompts, built-in English and Spanish options, and a metronome. Compatible with any type of CPR manikin that is intended for AED training.