Operational status indicator for battery and pad life, daily self checks, Device will analyse the patient and deliver shock automatically if required, Simple switch from adult to child mode, Dual adult/child Electrode Pads, Clear visual and verbal guidance, Ambient noise detector, CPR detection and metronome, Large internal memory with simple data access, Less than 6 seconds from completion of CPR to shock delivery, Simple data access with SD card download, Disposable battery pack