也许您不知道，OBEX并不是蓝牙本身的协议，实际是由无线数据协会创建的。

Just in case you didn't know, OBEX is not a native protocol of Bluetooth, but was actually created by the designers of Infrared Data Association.

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据美国无线贸易组织电信工业协会的数据显示，去年美国人打手机聊天的时间达2.3万亿分钟，比2000年增加了九倍。

Last year Americans spent 2.3 trillion minutes chatting on cellphones, according to the US wireless trade association CTIA — a ninefold increase since 2000.

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