You can switch between 3 backlight modes of HV-KB558CM: Breathing mode, Always On, and Backlights Off.

To Switch between Breathing Mode and Always On Mode, please press FN+Light Bulb button.

To turn on/off backlight, please press the Light bulb button.

Kb558cm

Related Posts

How do I change the DPI?
To change DPI, simply press the DPI button (the one next to the middle mouse wheel).
Read More
How do I connect H2232D / H2011D Headset to PS4?
Usually it's plug and play; For some devices, before use both headset speaker and microphone you need to finish the...
Read More
How do I connect H2232D / H2011D to Xbox Controller?
For XBOX One/ X controller new version, there is a 3mm audio jack, so you can just plug in the headset without the 2-...
Read More