It uses premium quality alloy shell and anti-oxidation gold-plated plug whicn makes it able to reduce the transmission loss of sound quality and prevent the plug from rust and oxidation. Furthermore, due to its 3.5mm interface, it has wide application including computer, laptop, tablet, mobile phone, sound card, car, TV with AUX interface, DVD, etc. Additionally, it is available for the function of mobile phone headset microphone so it is very multifunctional. In summary, it would absolutely be a great extension cord for you. Item Name: Audio Cable Material: Aluminum Alloy Shell, TPE High Elastic Skin, Tensile Fiber Woven Mesh, Enameled Copper Wire Conductor Interface Type: 1 x Four-level 3.5mm Male 1 x Four-level 3.5mm Female Features: Braided, Male to Female, Portable, Extension Cable Cable Length: 100cm/39.37";, 200cm/78.74";, 300cm/118.11"; (Approx.) Notes: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Package Includes: 1 x Audio Cable