4-In-1-Out / 1-In-4-Out Speaker/Headphone Switcher Box: Easily toggle between 4 audio inputs without the hassle of repeatedly plugging and unplugging audio cables, reducing the risk of potential damage to your equipment caused by frequent connections and disconnections. A simple audio switcher can effectively prevent this wear and tear on your audio gear | Compact Size: Measuring at 2.6 x 2.5 x 1.1 inches, this switcher box boasts a small, compact design that's perfect for a wide range of audio setups, offering convenience without taking up much space | Compatibility: This 3.5mm Audio Selector is specifically designed for use with 3-segment earphones. Please note that it does not support four-segment headphones | Bi-Directional Studio Switch: Seamlessly choose your audio input between 1, 2, 3, 4 with the 1/4 switcher and receive one output. Similarly, you can select your audio output between 1, 2, 3, 4 to accept one input, providing flexibility and convenience in your audio setup | One-Touch Mute Function: Equipped with a convenient mute button, this switcher offers quick muting capabilities, which can be particularly handy in special circumstances or when immediate silence is needed