ZOLL Stat-padz� are the fastest, easiest-to-use multi-function defibrillator electrodes and are optimized for emergency resuscitation situations, Pre-connected electrodes, Speed Pack™ reduces cord tangles and fumbling, DIagrams instructing where to place pads, Improved polymer gel enhances lateral conductivity; results in less skin effects. Center energy feed distributes energy uniformly; reduces edge effect, Compatible with AED Plus and AED Pro, Specially designed connector that works directly with the AED