Fangrui Product Details Fangrui Product Details Wide Application: Usb Volume Control Knob Is Compatible With Multiple Systems, Supports For Android And Systems, And Is Compatible With Mobile Phones, Tablets, Laptops, And Desktop Computers. Functions And Uses: Usb Volume Controller Can Directly Control The Volume Of The Computer , Can Be Customized, Support Shortcut Keys.( Note: Custom Functions Require Editing Software, Please Contact Customer Service For Editing Software.) Flexible And Rotatable: The Spindle Of The Pc Usb Volume Control Knob Supports 360 Rotating, Making It More Strong And Suitable For Long Periods Of Use. With Light: Usb Volume Controller Knob With Rgb Light, Can Only Switch, Type C Interface, Plug And Use. Easy To Use: There Is No Need To Install Any Drivers Or Software On Your Computer To Drive This Volume Regulator, And Can Be Used After Plugging In The Device. Item Type: Usb Volume Control Knob Features: Customizable; Support Shortcut Keys Support: For Android Systems, For Systems How To Use:insert The Usb Cable, Rgb Lights Tu