Introduction - If you have any usage issues, please Google them yourself
DSP learning data, voice, video machines, ① will plug into the headset jack J2 developed plate board, that the above figure "microphone input."
The other end into the audio output of the computer.
② the audio signal cord plug into the socket J4 I developed plate board, that the above figure, "headphone output"
③ adjust the headset volume knob to a moderate position.