Miller Falcon Self Retracting Lifeline 50 ft (Honeywell MP50G Z7 50FT) 37 NRR Electronic the noise canceling headsets category and tr 6600 the noise canceling headsets category and Bluetooth radio muffs like the 3M WorkTunes Connect add wireless streaming that the DPG15's wired aux and broadcast radio do not offer What does NRR actually mean Pros 50 ft working length covers longer travel from a single fixed overhead anchor Use case Fit Buyer guidance Overhead tie off with extended horizontal vertical travel Strong fit 50 ft of line lets a worker move farther from a single fixed overhead anchor than a 6 ft lanyard