It's also worth pointing out that the built-in external speaker on the Pre 3 is well above average, making a quick YouTube showing a pleasant experience for all involved -- even aurally.
另外需要指出的是，Pre3的外放喇叭的效果也优于平均，通过播放一则Youtube短片给我们的体验非常好。
There’s also an auxiliary jack that lets you use the iMainGo X as an external stereo speaker system for any device with a 3.5 mm connection -- laptop, cell phone, electric guitar, you name it.
还有一个辅助插孔你可以把iMainGo X 当作任何有3.5毫米接口的设备的外部立体扬声器——笔记本电脑，手机，电吉他等等。
The camera also includes two-way audio support with a built-in microphone and speaker, as well as connections for external sensors and alarms.
摄像机也包含双向声频功能、内置麦克风和扬声器，同时与外部传感器和报警器相连接。用户可通过可上网的手机进行远程监控摄像机。
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