A supported application for use of the 3.5mm audio input is the output of an audio mixer.
Please note that we do not typically recommend nor do we support the use of microphones plugged directly into the 3.5mm audio input.
The 3.5mm audio input is a line-in jack. If a microphone were desired to be used, please ensure the microphone is powered to produce the best audio results.
This analog audio input is an Unbalanced Stereo line-level @-10dBV