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RCA socket is called lotus socket in Chinese. It can be used not only in audio but also in general video signal. Now it is one of the most widely used audio / video terminals in the world.
RCA Audio terminals are generally marked in pairs with different colors: red for right channel (or "R" for "right") and black or white for left channel. Sometimes, the connection lines of the center and surround channels will be marked with other colors to facilitate the distinction of wiring. However, all RCA connectors in the whole system have the same electrical performance. Generally speaking, RCA stereo audio cable is a group of left and right channels, and each channel is a line in appearance.
Product Name :RCA JACK