HP dv4-2160us manual Features, Component, Description

Component		Description
(8)	Num lock light	On: The embedded numeric keypad is enabled.
		– or –
		Num lock is enabled on a connected optional numeric keypad.
(9)	Wireless light	● Blue: An integrated wireless device, such as a wireless local
		area network (WLAN) device and/or a Bluetooth® device, is
		on.

● Amber: All wireless devices are off.

*The 2 power lights display the same information. The light on the power button is visible only when the computer is open. The power light on the front of the computer is visible whether the computer is open or closed.

6 Chapter 2 Features