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AV (composite video + dual audio) cables （AV（复合视频 + 双音频）线缆 )
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Description
This is a set of AV (composite video + dual audio) cables used for transmitting analog audio and video signals.
Connector Types: Both ends are three-color RCA plugs (phono plugs) in red, yellow, and white. The yellow plug transmits video signals, while the red and white plugs transmit right-channel and left-channel audio signals respectively. They belong to analog audio-visual interfaces and are commonly found in the audio-visual input/output interfaces of devices such as old-fashioned TVs, DVD players, and set-top boxes.
Material and Design: The main body of the cable is black, and the plugs are gold-plated (to reduce signal loss and improve transmission stability). The overall design takes into account both durability and signal transmission quality.
Function and Application: It enables the synchronous transmission of analog audio and video signals between "AV interface devices". For example, it can connect the audio and video output of a DVD player to an old-fashioned TV to achieve audio and video playback. It is suitable for scenarios such as the interconnection of old-fashioned audio-visual equipment and simple multimedia demonstrations.
这是一组AV（复合视频 + 双音频）线缆，用于模拟音视频信号的传输。
接口类型：两端均为红、黄、白三色 RCA 插头（莲花头），其中黄色插头传输视频信号，红色和白色插头分别传输右声道和左声道的音频信号，属于模拟音视频接口，常见于老式电视机、DVD 播放器、机顶盒等设备的音视频输入 / 输出接口。
材质与设计：线缆主体为黑色，插头采用镀金工艺（减少信号损耗、提升传输稳定性），整体设计兼顾耐用性与信号传输质量。
功能用途：实现 “AV 接口设备” 之间的模拟音视频信号同步传输，例如将 DVD 播放器的音视频输出连接到老式电视机，从而实现音视频播放，适用于老式影音设备互联、简易多媒体演示等场景。
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