The AED Pro provides advanced capabilities for BLS and ALS users with innovative Real CPR Help technology for depth and rate of chest compressions. The See-Thru CPR technology filters CPR chest compressions, displaying the underlying cardiac rhythm. The AED Pro is unmatched in its ruggedness and durability and is ideal for any environment. The AED Pro Semi-auto/Manual automated external defibrillator includes backlit LCD screen, ECG display, soft carry case, rugged over-molded outer housing, multi-patient internal memory, IrDA port, operators guide, five year factory warranty.