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How this high school went completely phone free by locking up student's phones

San Lorenzo High School in the East Bay Area has banned cellphone use during the school day. This is made possible by the San Francisco-based start-up Yondr, which creates locking smartphone pouches. Yondr is catching the attention of an increasing number of educators now that famous performers like Dave Chappelle, Jack White and Chris Rock use the product at their shows.
05:03
Tue, Jan 29 20192:53 PM EST