Customizable Volume Control Knob Multimedia Controller BT + Wired Connection with RGB Light black.Feature: 1. One Key Mute or Adjust: USB volume controller can directly control the volume of the computer operating system, can be customized, and support shortcut keys. 2. Customed Multimedia Controller: Customizable clockwise rotation, press and clockwise rotation, press and counterclockwise rotation for personalized control. 3. Versatile Connectivity: USB wired, and BT 5.1 connection options with