Instructions for Use
Page 22
... signal cancels most of cancelling out sound using "anti-sound" (phase-inverted sound). phones can be used as passive hearing protectors 5 Additional features y Outstanding sound quality due to patented adaptive baffle damping and Duofol diaphragms y Optimum protection against ambient noise due to NoiseGard Advance active noise compensation y Great for travel: comfortable, rugged and foldable headphone construction...
... signal cancels most of cancelling out sound using "anti-sound" (phase-inverted sound). phones can be used as passive hearing protectors 5 Additional features y Outstanding sound quality due to patented adaptive baffle damping and Duofol diaphragms y Optimum protection against ambient noise due to NoiseGard Advance active noise compensation y Great for travel: comfortable, rugged and foldable headphone construction...