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Available now on the documentary from the BBC World Service.
We look at the phenomenal rise in the use of headphones and earbuds.
People in just about every city in the world have started wearing them.
The revolution shows no signs of slowing.
It's my time.
It's my moment.
My own little bubble.
How and why did this happen?
Life in a bubble, the headphone revolution.
Listen now by searching for the documentary wherever you get your BBC podcasts.
Hello and welcome to News Hour from the BBC World Service.
Coming to you live from London with me, Sean Lay.
Tomorrow, Wednesday, US President Donald Trump's tariffs will hit many countries for the first time,
as their exporters face the prospect of US buyers refusing to pay the higher prices.
And in some cases, as we'll be hearing, demands from American retailers that they absorb the extra cost themselves.
China,
which has faced tariffs on its exports to the US both during the first Trump administration and during the Biden one,
has vowed to fight to the end.
China's Premier Li Chiang said it was typical unilateralist, protectionist economic bullying.