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Group Play is one of the many new features that have been piled into the new Galaxy S4, which allows up to five S4 phones to be linked to share photos, documents, games and music. In this video, we take a look at how two phones can share music and be set as a right and left speaker, with their volumes being controlled together or independently.
Read our full Samsung Galaxy S4 review with exclusive pictures, videos and comparisons:
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