CC MALL Gaming Keyboard,Retro Punk Typewriter-Style, Blue Switches, White Backlight, USB Wired, for PC Laptop Desktop, Stylish Pink Mechanical Keyboard (Round Keycaps)

About lighting effects FN + INS: switch lighting effects(30 types with white backlight) FN + ? / ?: Adjust the speed of the light effects Knob: adjust backlight brightness To adjust the backlight brightness: Press FN + 9 or FN + 0 to enter the custom mode, then press FN + END to start recording. Click the keys you want to make them light up, and press FN + END again when finished to maintain the setting. To clear this setting, press FN + pageup to clear. After long pressing the knob for three seconds, SW1 / SW2 / SW3 and the knob will enter the multimedia mode: 1.Short press the knob to mute; turn to adjust the volume 2.Short press SW1, the previous one 3.Short press SW2 to play / pause 4.Short press SW3, next song After pressing the knob for three seconds, it will return to full light mode.