3 IN 1 Multimedia Knob Mechanical Gaming Keyboard Set (Black/Blue Backlit/Blue S

【Multi-Function Media Control Knob】Multi-Function Alloy luminous knob can control switching media volume, backlight brightness. Keyboard controls for everything from brightness to volume via a programmable multi-function digital dial with three tactile media keys. 【22 Kinds of Cool Lighting Effects】The colorful Bright rainbow LED backlight can bring you into a great gaming atmosphere. There are permanent lighting and automatic breathing lighting 2 backlight modes for your options. 【Full Keys Anti-Ghosting Design】Each key is controlled by independent switch, Enjoy a total anti-ghosting of 104 keys thanks to the N Key Rollover technology!