●线芯导体为4N无氧铜绞束而成，抗氧化，讯号导通率高，衰减小。

●此型号线适用传输低频小信号用线连接，俗称话筒线，外护套为弹性体聚氯乙烯，手感柔软，色彩鲜艳，耐扭曲，不脆化。(低温冲击脆化温度可达-30℃)

●此型号的四芯结构型线可用二二对角两芯相接(见图示)法连接，此时其屏蔽噪音效果更佳，,测定噪声电并只有两芯麦克风电缆的1/10。

●The Cable has stranded 4Noxygen-fre copperwire asthe core conductor,which resistsoxidation,ensureshigh transmission ate and low attenuation.

●Such cablecan be used forthetransmission of lowfrequency signals,when they are usuall called microphone cables.The protective sheaths are made ofelastic lyvinyl(PVC)in bright colors which are soft,distortion endure,and hard to go brittle.(brittle temperature:-30℃

●The fourcoresare aranged he way which the grap belowshows,whenthey can be best shielded from noises.Noise calibrationofsuch cablesis only 110of hat   of two-core microphone cables.