1.Used Self-locking RCA connectors, which is made of copper-plated plug, metal shell, and advantages of metal shell can be shielded from external interference. 2.The high purity pure copper conductor with more than 95% of the copper shielding allow compatible with maximum signal transfer, reduce distortion and signal loss, to keep your musical device percompatible withmance. 3.Used high purity silver-plated conductor audio signal lines, each line adds two core pure copper nerves , its main role restore audio fidelity sound field, so the lossless transmission of audio signals have sufficient safeguards . 4.Use containing 3% silver Senju solders soldering.Plug: RCA Plugcolour: green Material: oxygen-free copper + silver-plated Size: 0.5m Package Contents:2 x RCA signal cable Only the above package content, other products are not included.Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.