
Chapter 1
The heavy-duty pioneers
Chapter 2
The sound of freedom
Chapter 3
The science of silence
Chapter 4
Bypassing the eardrum
YOUR GOAL
Master of How headphones changed the way we hear the world
Ch 2 · The sound of freedom

joy Beats Electronics popularized oversized, bass-heavy headphones as pricey fashion statements through bold designs and celebrity endorsements.

joy Classical fresco figures wear iconic white earbuds painted in a luminous Renaissance style.

BETA
joy Tune into secret broadcasts to discover how headphones brought the sound of freedom to listeners.
Fun Fact
Viking connection: Bluetooth is named after Viking King Harald Bluetooth, and its famous logo is actually a combination of his Scandinavian rune initials!
Glossary
walkman (noun)
A portable personal stereo player, typically used with lightweight headphones, designed for listening to music on the go. Sony released the landmark TPS-L2 model in 1979, revolutionizing mobile music and personal audio privacy.
A portable personal stereo player, typically used with lightweight headphones, designed for listening to music on the go. Sony released the landmark TPS-L2 model in 1979, revolutionizing mobile music and personal audio privacy.
Quiz
What major hardware change did Apple make to the iPhone in 2016 that boosted wireless headphone sales?
