Which of these famous invention slogans helped transform a failing product by reframing it from a medical device to an entertainment innovation, leading to widespread adoption?

Behind every groundbreaking invention or discovery lies not just brilliant engineering, but often brilliant marketing too. Some product taglines became so iconic they fundamentally shaped how we view technological progress. This trivia challenges you to identify which famous slogan helped transform a struggling invention into a world-changing success through clever psychological positioning that altered consumer behavior.

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"It speaks for itself" - Edison's Phonograph (1877)
"Music for the Masses" - Sony Walkman (1979)
"The instrument by which the ear can see" - Kodak Camera (1888)
"All the music, none of the medicine" - Guglielmo Marconi's Radio (1901)