Two way Audio Function 双向语音功能
Provides two way audio communications 双通道音频连接
Two-way video & audio 行双向影音监控录影
Two-way audio allows you to not only to listen to live audio, but also talk back via the camera's speaker.
双向音频允许你不仅要听现场音频，而且还可以通过摄像机的扬声器顶嘴。
A powerful search engine, two-way audio communications, and looping outputs add to the recorder's utility.
强大的搜索引擎，双向音频通信，添加到录音机效果中的输出循环功能。
Other features include pre - and post-alarm image buffering, video motion detection, and two-way audio support.
其他功能包括前后警报图像缓冲，视频动态侦测和双向音频支持。
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