These pads are for training purposes only to be used on the HeartStart FRx trainer. They will not work on the actual AED. The pads are neither child or adult, simply type in a scenario in the FRx trainer and the trainer itself will switch the pads to either child or adult depending on what you need.
PLEASE NOTE: Pad cartridges, training pads, electrodes or batteries that have been opened are NOT returnable.