Description: 3.5mm Stereo Audio Switcher: Bidirectional switching Splitter Audio Sharing active speakers and headphones Method 1: Connect 2 audios to (input/output) 1 and (input/output) 2, use the 1/2 switch to get the output; Method 2: Connect the audio to the input/output, select the audio output between (input/output)1 and (input/output)2 (the output, can be switched between speakers and headphones) One key mute, convenient and fast, very practical in special occasions. Plug and play: no external power supply required; no impact on sound quality at all Specification: Support system: windows/xp Resolution: 1080P Line length: 10 Material: iron Size: 78x50x20mm/3.07x1.97x0.79inch Package Includes: 1 Piece 3.5mm Audio Switcher 1 Piece USB 1 Piece Manual Note: 1. Please allow slightly error due to manual measurement. 2. Due to the difference between different monitors, the picture may not reflect the actual color of the item. 3. Wish you a wonderful on-line shopping!