Which groundbreaking product innovation was initially rejected by its inventor's own company before becoming one of the most successful consumer technologies of all time?

The journey from idea to revolutionary product often involves unexpected twists and fascinating stories of discovery. This trivia question explores a notable invention that transformed how we interact with technology, focusing on the innovative approach that made it a commercial success. Test your knowledge of product innovation history and the visionaries behind game-changing inventions!

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The Sony Walkman, rejected by Sony's audio division before CEO Akio Morita personally championed its development
The iPhone touchscreen, initially dismissed by Apple engineers as too battery-intensive and impractical
Post-it Notes, rejected by 3M's marketing department as having no commercial potential
The Dyson vacuum, turned down by Hoover when James Dyson approached them with his cyclone technology