HP 421 Notebook-PC - Manual (Page 51)

Component Description
(1) Webcam light (select models only) On: The webcam is in use.
(2) Webcam Records video and captures still photographs.
(3) Integrated microphone Records 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.
(6) Speaker Produce sound.
Multimedia features 39