4 Way/2 Way 3.5mm Stereo Audio Switcher Bi-Directional Audio Switch Splitter Box 2 In 1 Out 4 In 1 Out with Mute Button. Stereo Audio Switcher. 4 Way 3.5mm Audio Switcher. 4 Way switcher. 2(1)-in-1(2)-Out 3.5mm Stereo Audio Switch Audio Switcher ，3.5mm Stereo Audio Switch Audio Switcher AB Switcher，3.5mm Stereo Audio Switch Splitter 2 x 1/1 x 2, with Mute Button and No External Power Required.
