It is an irony that the very properties that makes a noise cancellation earphone desirable, can also deem it hazardous. Even though it feels nice to get disconnected from the chaos and din of the streets, the feature also renders you deaf to possible warning sounds such as the honking of a car or a bicycle bell. The ‘Master Your Sound’ earphones are designed to provide the best of both worlds with a feature to turn noise cancellation on and off at will.