This series is high-quality Square & Round speaker cable wire consisting of 2-core twist conductors, including 18AWG, 15AWG, 13AWG. Each conductor is fitted with a highly flexible jacket made of PVC. It is suitable for attach an input device with an output device specially speakers, make the electrical connection between loud speakers and audio amplifiers. It is used for hi-fi speakers and PA systems 、home and car Hi-Fi connection、fixed installation.