HP ProBook 4321s Notebook-PC - Manual (Page 62)

Component Description
(1) Internal microphone Records sound.
(2) Webcam Records video and captures still photographs.
(3) Speakers (2) Produce sound.
(4) Audio-out (headphone) jack Produces sound when connected to optional powered stereo
speakers, headphones, ear buds, a headset, or television audio.
NOTE: When a device is connected to the headphone jack, the
computer speakers are disabled.
(5) Audio-in (microphone) jack Connects an optional computer headset microphone, stereo array
microphone, or monaural microphone.
Adjusting the volume
You can adjust the volume using the following controls:
● Computer volume keys:
◦ To mute or restore volume, press and hold the fn key (1), and then press the mute key f7
(2).
◦ To decrease volume, press and hold the fn key (1), and then tap the volume down key f8
(3) until the desired volume level is reached.
50 Chapter 4 Multimedia