The unique infant/child key is used only with the FRx Defibrillator when treating an infant or child who is under 55 lbs or 8 years old. Once the infant/child key is inserted, the FRx automatically reduces the defibrillation energy with the use of adult pads and provides voice and visual instructions and CPR coaching specifically geared for treatment of infants/children. Graphics on the key show proper pad placement for infants and children.