Defibtech Lifeline electrodes are suitable for the following models: * Defibtech Lifeline * Defibtech Lifeline AUTO The package contains: One pair of electrodes: provided with gel, self-adhesive, disposable, non-polarized. Lifespan electrodes: approximately 2 years Electrode cable length: 122 cm Active surface electrode: 103cm2 (nominal) Pre-connected: electrodes can be stored in the AED while connected