There’s a built-in stereo microphone for use with your video, plus a mike jack.

内置的立体声麦克风和扩音器，能帮你在摄制影像的时候，耳听八方。

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Technology blog Engadget is also reporting that the Courier will also have built in camera and a headphone jack for media playback.

科技博客engadget也报道Courier将配有摄像头和耳机插孔以便于媒体播放。

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There's a built-in stereo microphone for use with your video, plus a mike jack.

内置的立体声麦克风和扩音器，能帮你在摄制影像的时候。

youdao

The Roku 3 enhanced remote features a built-in headphone jack for private listening with the included in-ear headphones.

ENGADGET: Roku 3 goes on sale tomorrow for $99 with upgraded CPU and a new UI

The card comes with a built-in speaker and a jack for headphones.

FORBES: Magazine Article

Oh, and while there are Virtualphone built-in, there's also a headphone jack, so you can bring your own pair.

ENGADGET: Sony HMZ-T2 3D display, heads-in (video) HD