Texas Instruments TravelMate 4000M User Reference Manual page 210

CD-ROM Docking System
This section describes the functionality of your Portable
CD-ROM Docking System. With the Portable CD-ROM
Docking System, you may:
CD Eject
Power
Plug in microphones
Plug in headphones
Plug in external audio sources
Adjust audio
Microphones and Headphones
The TravelMate 4000M Portable CD-ROM Docking System
features a microphone and headphone set. The following
diagrams display where the microphone and headset plug
into the Portable CD-ROM Docking System.
Using the Portable
Portable CD-ROM Docking System 12-9