Bus or train.... If I forget my earphones, I am dead.. specially in buses, I hate the songs they play.. with my earphone on , it's a pleasure to travel in any situation..
What if we travel without any technology devices ( Eg: Mobile,earphone,headset,etc) and enjoy the view and noise rather sleeping or hating ? It maybe boring for the person who are travelling to the same route every day, But see the day are NOT yesterday right ? It's a new day but the same familiar face and the vehicles, which mean we all can't learn something new from which we know yesterday.

Further, without headphone we can even learn and enjoy the noise from the nature and people, doesn't matter it's new or same its all depends on the way we look at it.

PS: I'm sorry, if i'm being passive in my feedback.