LifePak CR2 Essential Defibrillator uses simple graphics, audible instructions, and automated features to help users begin lifesaving care in just 2 steps. CPR coaching gives users the confidence to perform CPR correctly. Both trained and untrained AED users clearly know how to begin and where to place electrode pads. It provides instructions for adult and paediatric CPR, including feedback when no CPR is detected, rate and depth guidance, a metronome and instructions on hand placement. The Semi Automatic AED will deliver shocks when button is pressed by the user.