A semi-automatic external defibrillator that is technologically advanced enough to provide the most advanced treatment of SCA. Exceeds AHA standards. Uses the most studied biphasic shock waveform and automatically adjusts shock delivery as needed. Automatic self tests for battery insertion and pad presence.Includes: one pair of adult defibrillator pads one set of defibrillator electrodes five-yearbattery 9V status indicator battery User's Manual and quick-use card.