UOM: Each Description: * Operations status indicator for battery and pad life* Free, robust carry case* Daily self-checks* Simple switch from adult to child mode* Two sets of electrode pads, one set pre-connected, one spare set. For use on adults and children (age1 )* Clear visual and verbal guidance* Ambient noise adjustment* CPR detection and metronome* Large internal memory with simple data access* Less than 6 seconds from completion of CPR to shock delivery* Disposable battery pack