It is similar to Dr Echt's leadless pacemaker, but it uses electromagnetic induction, rather than ultrasound, to stimulate a small implanted receiver, which in turn stimulates the heart.
Getting in on his fourth try, Parcells led an induction class that also included mouthy defensive lineman Warren Sapp, prolific receiver Cris Carter and a pair of stalwarts from the trenches, offensive linemen Jonathan Ogden and Larry Allen.