2X stronger voice reduction Compared with soundcore Life Q30 headphones | Reduce noise by up to 98% with adaptive noise cancelling | Crisp, Hi-Res sound via 40mm dynamic drivers | Worry-free battery (40H ANC on, 55H ANC off) | 8° rotating ear cups and soft integrated headband for all-day comfort | 5 levels of adjustable transparency to tune your world | TCO Certified: For Better