Gold-plated plugs can effectively reduce the loss of sound quality. The product is small in size and easy to carry. With one for 3 function, you can share music to your friends since 3 headsets are connected at the same time. It is made of good quality PVC material, durable to use. Its length is 30cm. It is suitable for computer, phone, tablet, etc. Item Name: Audio Extension Cable Material: PVC Color: Black Plug: 1 x 3.5mm Stereo TRS 3-pole Plug Female Head: 3 x 3.5mm Stereo Female Interface Applicable Objects: Various Devices with 3.5mm Audio Output, Such As MP3, MP4, Mobile Phones, Computers, Game Consoles, etc Features: Universal, 1 to 3 Ways, Widely Compatible Size Details: Length: 30cm or 11.8" (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. 3.5mm 3-pole only supports stereo music transmission, not voice calls. Package Includes: 3 x 1 x Audio Extension Cable Note: 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.