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Sonos Play will become available on March 31 with a price tag of $299 (€349 in Europe). The Sonos Era 100 SL is coming on March 26 for $189 (€199 in Europe).，这一点在whatsapp中也有详细论述
。谷歌对此有专业解读
So Barnett taught himself 3D computer-aided design software and started sending off models to a prototyper in China. Within three or four weeks, he would receive the prototypes. “I would be devastated each time,” Barnett says of those early models. It ultimately took “probably 60, 70 rounds, hundreds and hundreds of prototypes” before Barnett had an accordion-mechanism circle that could stick to the back of a phone — a PopSocket.
And that’s for 100 players?，详情可参考wps