4 Port 3.5 mm Stereo
Audio Switcher: Bidirectional switching Splitter Audio Sharing active speakers and headphones;
Method 1: Connect 4 audios to (IN/OUT)A/B/C/D, use the 4 channel switch knob to get an output;;
Method 2: Connect an audio to IN/OUT, select an audio output between (IN/OUT)A/B/C/D; (The output can be switched between speakers and headphones); 4 channel switch knobs, fully isolated independent circuit, make sure that each signal is not affected by the other three channels.; Plug and play; No External Power Required; Won't affect the sound quality!;
Note: Does Not Support Microphone.