Lenovo C100 - IdeaCentre - Desktop PC User Manual page 10

1.4.3 Connect the mouse cable to the appropriate mouse
connector (USB connector).
1.4.4 If you have audio devices, attach them using the
following instructions:
Microphone
Headphone
1.4.5 If you have powered speakers with an adapter:
(This picture is only a sketch print, it does not show the actual figure of the speaker)
31039393_3000 C100_UG_EN_V2.0.in5 5
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Use this connector to attach a microphone (purchased separately)
to your computer when you want to record sound or if you use
speech-recognition software.
Use this connector to attach headphones (purchased separately)
to your computer when you want to listen to music or other
sounds without disturbing anyone.
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User Guide
2009.8.21 2:13:19 PM