Which innovative marketing technique did Sony use in 1979 that revolutionized portable music and created an entirely new product category?

Test your knowledge about game-changing product marketing strategies that transformed ordinary inventions into household names. Throughout history, many brilliant inventions remained obscure until revolutionary marketing techniques brought them to widespread attention. This poll explores how creative promotion strategies helped certain innovations achieve breakthrough success in the marketplace.

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They hired Michael Jackson as the first major celebrity brand ambassador for the Walkman
They sent Walkman devices to influencers by having employees wear them while jogging in public parks
They introduced the first buy-one-get-one-free promotion for an electronics product
They created the first infomercial showing the Walkman surviving extreme conditions