Unwired Video Review For many of us who are both music and iPhone addicts, the handset's own earbuds aren't really up to the task of hammering out top tunes. But they do have a built-in microphone, which makes it easy to switch between music and calls. Thanks to this gadget, now Shure's top-end 'phones do too.

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BTW, it also works with the Motorola Razr V3i and Palm's Treo range.