Using The Audio-In (Microphone) Jack - HP Compaq NX6105 Hardware And Software Manual

Multimedia

Using the Audio-In (Microphone) Jack

The audio-in jack, identified in the following illustration,
connects an optional monaural (single sound channel)
microphone. The audio-in jack is sometimes called a
microphone jack.
It is recommended that you use an electret condenser microphone
with a 3.5-mm plug. If you connect a dynamic microphone, the
recommended sensitivity may not be achieved.
Hardware and Software Guide 4–5