Modern young people like to play sports with headphones, work, drink coffee, walk their dogs ... but you can''t guess whether his BGM is rock or steam, electric sound, cross talk, or even English listening.
How to listen to songs? What to listen to? What you want to hear is non-destructive, and the noise you don''t want to listen to is reduced. Everyone wants to choose a "best CP" for their ears. The city is too hustle and bustle, who doesn''t want to own a noise canceling headset and immerse themselves in their own world.
