4-PACK AED TRAINING KIT - Includes 4 AED Practi-TRAINER machines with English/Spanish voice module with 8 pre-programmed scenarios, 4 remote controls (batteries not included), 4 sets of child pads, 4 sets of adult pads and connectors, 4 manuals, 4 carry cases and 1 large carry case to carry all 4 AED Practi-TRAINERS REPLACEABLE AED MODULE FOR AHA COMPLIANCE - The AED Practi-Trainer includes a replaceable scenario/language module which means when AHA guidelines are updated, only the plug-in module needs to be updated instead of buying a new unit REALISTIC DEFIBRILLATOR TRAINING - This AED training unit provides realistic AED training but cannot deliver an actual defibrillation shock. This item is for training purposes only and cannot be used for patient defibrillation