True Active Noise Cancelling Headphones Noise reduction mode can be turned on without connecting a phone Why we need a noise cancelling headphone? [Block Most Sounds] Noise-cancelling headphones with intelligent noise reduction chip do block out the majority of external sounds. [Lower Music Volumes Provides Richer Listening Experience] Most music, however, is much richer and fuller when played at a more natural volume. Noise-cancelling headphones allow users to turn the volume down and hear the intended richness and the variations in the music that disappear when the volume is pushed to the limits. [To Preserve Ear Health] Music or heavy traffic generates noise levels of up to 85 decibels (dB), which sufficient to cause permanent hearing damage if we are exposed to it for several hours every day. The nice thing about noise-cancelling headphones is that much of the external sound is blocked without having to replace it with even louder sounds. [Noise-Canceling Headphones Are Great for Traveling] For people who often travel on commuter metro trains or airplanes, there is a great need to block out the outside noise during these times in order to sleep, read, or work. Noise-cancelling headphones allow these commuters to use their time well, even if that just means sleeping on an airplane. [Noise-Canceling Headphones Are Ideal for Studying] Many students find it hard to concentrate, especially when sounds are distracting them at all times. Using noise-cancelling headphones helps students to block out the external world and concentrate on what they need to learn.