Leadless cardiac electrophysiology devices have been around for a while now, but Abbott Laboratories of Abbott Park, Ill., has managed to beat the competition in the market for dual chamber pacing via two leadless devices. The company reported July 5 that the U.S. FDA has approved the Aveir DR, a two-unit device configuration that provides pacing for both the right ventricle and the right atrium and which some analysts believe helps to make Abbott shares an underappreciated asset for investors.