Noise-cancelling microphone enhances sound quality and voice-dialing performance.

降噪麦克风提高音质和语音拨号的性能。

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The power/lock button is also found on this squiggly cable, as well as the secondary microphone for noise cancelling and clarity during phone calls.

这跟弯弯曲曲的线缆上还能找到开机键和锁屏键，已经另外一个麦克风，用于噪音消除和提升语音质量。

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That leaves us with the top of the device, where there's a 3.5mm headset jack and secondary noise-cancelling microphone, and the bottom which houses the main microphone and micro-USB port.

ENGADGET: Samsung Focus 2 review Mobile