Microphone - NEC VERSA DOCKING STATION 6000 Manual

use the input and output jacks on the back of the board. See your
sound board documentation for details.
The following figure identifies the audio ports on the back of the docking
station.

Microphone

For the best results, NEC recommends that you use an omnidirectional
monaural microphone that has an electric condenser. (See Appendix A,
Specifications, for recommended microphone specifications.)
To connect a microphone to the docking station, insert the microphone jack
into the microphone port.
If you install an optional sound board in the docking station,
Docking station audio ports
Connecting Peripheral Devices 5-7