1. The plug is gold-plated, with good contact performance and not easy to oxidize 2. Allows you to connect the audio cable with any standard stereo left/right output, providing clear stereo and high-fidelity audio for your home stereo or home theater system 3. Made of environmentally friendly materials, polyethylene insulation is improved, high frequency response, strong, flexible and durable. Despite providing multiple layers of shielding and insulation for noise isolation, this cable is still extremely flexible, tangle-free, and easy to coil at the end of the show 4. It can eliminate signal loss and static noise, provide durability and improve signal transmission, and the copper shell can block any interference and prevent loss of sound quality 5. Process: nickel plating 6. Wire core material: bare copper wire 7. Wire material: copper