Maarten Bodewes, left, and Dimitri O are childhood friends and the co-founders of Loop Earplugs. Maarten Bodewes Co-founder, Loop EarplugsEach co-founder spent roughly $40,000 to get Loop off the ground — "as far as I could go on my money," says Bodewes. "[We] 3D printed different prototypes, different shapes, different lengths of canals, sound entries, different filters that we tested," he adds. "The nightlife part is still driving a lot of our sales," Bodewes says. Source: Loop Earplugs

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Persons: Maarten Bodewes, Dimitri O, you've, Taylor Swift, They're, ’, ‘, Bodewes, Wired, Loop's earplugs Organizations: CNBC, Microsoft, Saturn, Belgian Locations: Belgian, Brussels, U.S, Europe