■Product description ·Stereo mini plug cord (male male) ·Plug diameter 3.5mm 3-pole type gold-plated terminal ·Cord diameter 2.8mm high-quality silicone rubber soft and easy to use. Inner line: Made of high purity copper wire, which is said to improve sound quality, connect your smartphone, tablet notebook PC to auxiliary port.Enjoy your music collection with audio.It is popular among those who want high sound quality and immersive music playback, and those who enjoy clearer sound.Sound Cable Headphone Amplifier Headphone Earphone High Quality Sound Playback Music player: Connect a PC: game console, etc. to the external input terminal (AUX) of each audio device for playback: You can use it for recording. Connects line output and line input of audio devices that support 3.5 Φ stereo mini plug.