1. The knob has 5 operations that can customize different functions, characters, key combinations, etc. 2. The aluminum alloy shell processed by CNC has a full metal feel and feels very stable; the bottom plate is a plastic plate, otherwise the signal cannot be transmitted. 3. The light defaults to power saving mode, and the lighting effect can be changed through the setting tool, or the light can be turned off after saving with MODE_0 settings. There is also a lighting effect when using wirelessly. 4. Defined: the clockwise, press, and counterclockwise rotation of the knob, press and hold the knob to rotate clockwise, and press and hold the knob to rotate counterclockwise, all of which can be customized. 5. All settings need to be connected to the computer via a TYPE-C data cable compatible with operation. Note:1. The wired version can only be used by connecting the computer via a data cable; 2. The LED lighting effect function can be turned on or off when used wired; 1. Single character modification; 2. Continuous character modification (up to 18 characters); 3. Combination keys; 4. Macro settings; 5. Mouse settings; 6. One-key password settings; 7. Time delay settings (time delay can be set compatible with each button); The positive and negative rotation of the knob, press, press and hold the knob to rotate clockwise, press and hold the knob to rotate counterclockwise, all of which can set the above functions; Color: Black Material: Aluminum Alloy+Plastic Package Contents: 1 x USB Volumes Controller 1 x USB cable Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.