HP L1520 User Manual page 21

hp L1520/hp L1720/hp L1820 LCD Monitor
Setting Up the Monitor
Connecting additional devices to your monitor
(selected models only)
The following picture shows that additional devices can be
connected to the monitor.
On the side of the audio base, the monitor has one headphone
connector and one microphone connector. You can use these
connectors to connect various compatible devices.
Black Headphone connector
Pink Microphone connector
20 English
Volume control
Microphone connector
Headphone connector