On the top of the nano are a Sleep/Wake button and shuffle-like Volume Down and Volume Up buttons.

在 nano 的顶部有个睡眠/唤醒按钮以及和 shuffle 类似的音量降低和音量升高按钮。

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You can now press the Volume Up button to snap a picture; it falls exactly where a real camera's shutter button would be.

如今，你还可以通过上方的“音量按钮”来拍照，它简直就变成了一个快门按钮。

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It is much quicker to turn up the radio's volume control by hand than it is to press a special button and say "radio-raise volume," he notes.

他注意到，直接用手调节收音机的旋钮来调整声音要比按住专用按钮再说“收音机——调大音量”要来得快得多。

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Can use the volume up button as a shutter trigger.

FORBES: Apple: Live From The WWDC; OSX Lion, iOS 5; iCloud

Its body is constructed entirely of plastic, save the aluminum power button up top and volume rocker on the side, plus the sliver of metal serving as the earpiece grill.

ENGADGET: BlackBerry's new Dev Alpha B handset runs BB10, we go hands-on

There's a slender power button up on the top and, on the upper-left, a three-way volume rocker like those found on many BlackBerry handsets.

ENGADGET: iPod nano review (2012)