Connecting Speakers and Other Audio Devices
Your MacBook Pro comes with two built-in speakers, a built-in microphone, an audio
line in/optical digital audio in port, and a headphone/optical digital audio out (f) port.
You can connect external speakers, headphones, 5.1 surround systems, and other
sound output devices to the headphone (f) port. The headphone port is also a S/PDIF
stereo 3.5 mini-phono jack. When devices are plugged in, sound won’t come through
your built-in speakers. Unplug any headphones or speakers to hear the computer
You can record sound onto your hard disk using the built-in microphone located under
the left speaker grille. You can also connect external microphones or other audio
equipment to the audio line in port. The audio line in port is also a S/PDIF stereo 3.5
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