Philips HeartStart FR3 AED Rigid System Carry Case. Designed with room for a spare Battery, spare Defibrillation Electrode Pads, and Infant/Child Key. Self-check indicator can be seen through the clear window without having to remove the AED from the carry case. The FR3 AED Rigid System Carry Case can be set up to automatically turn on the FR3 AED when the case is opened (see FR3 AED user manual for instructions) Philips HeartStart FR3 Rigid System Case