Making Connections Connecting External Devices To connect audio devices Your OmniBook has a built-in microphone and two stereo speakers. The audio jacks allow you to plug in external audio devices. • Plug a stereo input source (such as a CD player) into the input (left) jack. • Plug the microphone-into the microphone (middle) jack. The built-in microphone turns off. • Plug devices such as headphones or external (amplified) speakers into the output (right) jack. The built-in speakers turn off. C A U T I O N Connecting a mono plug into the speaker-out jack may damage the OmniBook. The audio jacks are three-terminal stereo jacks. They are not compatible with two-terminal mono plugs. 4-13