This is a high-fidelity audio adapter for mobile phones, which uses aluminum profiles to present the scientific and technological sense and interest of the products with the color light effect of music beating. It is suitable for users who pursue different sound effects when listening to music or playing games. You can choose the original sound mode/bass enhancement/vocal focus/7.1 surround sound, and simply operate one-key switching to accurately match different usage scenarios. It solves the problem of compatibility and sound quality loss of users using traditional wired audio equipment after the 3.5mm audio hole is canceled in the current mainstream digital equipment, takes into account the practicability of daily use and the professionalism of audio experience, and adapts to the audio requirements of mobile phones, tablets, notebooks, desktops and other multi-device scenes.