The MEDUCORE Standard defibrillation, monitoring and oxygen therapy system is a perfect companion for everyday emergency interventions. It features intuitive menu navigation, clear voice instructions and a metronome to help you maintain the proper heart massage frequency. The MEDUCORE Standard defibrillation, monitoring and oxygen therapy system also allows you to prepare for defibrillation while analyzing the heart rhythm, so that an electric shock can be administered immediately if necessary, reducing the interruption of cardiac massage for defibrillation to a minimum.