3.5mm Stereo Audio Switcher: Bidirectional switching Splitter Audio Sharing active speakers and headphones.Method 1: Connect 2 audios to (IN or OUT)1 and (IN or OUT)2, use the 1 or 2 switch to get an output.Method 2: Connect an audio to IN or OUT, select an audio output between (IN or OUT)1 and (IN or OUT)2 (The output can be switched between speakers and headphones).One-key mute, convenient and fast, very practical in special situations.Plug and play No External Power Required Won't affect the sound quality at all.Colour: blackMaterial: plasticPackage Contents:1 x 3.5mm Audio Switch Switcher1 x 3.5mm Audio CableOnly the above package content, other products are not included.Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is 1-3cm.