Google Quietly Buys U.K. Sound Tech Startup Redux

Photographer: Facundo Arrizabalaga/EPA via Getty Images

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Alphabet Inc.’s Google has quietly acquired a U.K. startup focused on technology that turns surfaces such as phone displays into speakers.

Redux developed technology that eliminates the need for small speakers in mobile phones, freeing up space for batteries or other components, the Cambridge, U.K.-based startup said on its now defunct website.