... )Lead: 5 wire patient cable (any 3 leads in V1~V6)Power: 1 AAA size batteryData transfer: Through USB cable or ... wire patient cable (I, II, III, aVR, aVL, aVF, V1~V6), 5 wire patient cable (any 3 leads in V1 ... ~V6)Power: 1 AAA size batteryData transfer: Through USB cable or ...