Elsewhere's $50 phone frames turn videos 3D, and boy do they pop - CNET

Black plastic glasses from a tiny wife-and-husband startup hook onto an iPhone to make any movie, show or clip feel like you're watching in Imax 3D.

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https://www.cnet.com/news/meet-elsewhere-50-plastic-frames-that-turn-any-video-3d/#ftag=CAD590a51e