From the latest release from your favorite band to catching up on podcasts, choose this pair of Quiet Comfort 35 Wireless Bluetooth Headphones with noise cancellation to make music sound better. These headphones feature a volume-optimized EQ for balanced audio performance at any volume. 20-hour battery life per charge; up to 40 hours in wired mode to keep the beats going! These headphones also feature noise-rejecting dual-microphone system for clear calls even in windy environments.