Audio 3.5 Switch Module Plug 2 Input 1 Switch Output Signal sound switching. 2. Key Switch: The module is for switching the audio signal by key switch, which is convenient and quick to operate. 3. Standard plug socket: The input socket has a 3.5 standard audio plug, and the output end is a 3-5 audio socket and an XH terminal. 4. Compact structure: The audio switching module has a small and compact structure, easy to install and does not take up space. 5. Good compatibility: the audio switch board adopts standard parts, which have the advantages of good compatibility and u. Specification: Item type: Audio switch module Product model: XH-M371 Product function: output switch 2 way signal input jack : 3.5 standard audio plug Output type: 3, 5 audio jack + XH terminal Switch method: key switch Appearance size: approx. 42 x 30 mm / 1.7 x 1.2 inch (without red protruding parts) Package list: 1 x Audio switch module