Bluetooth + wired + wireless three-mode connection Customizable Volume Knob for volume control Dual Knob Control for intuitive volume and function adjustments RGB Lighting with customizable options for a look Reverse Direction Knob and Bluetooth Connectivity with single-button pairing for easy device connection Specification: Bluetooth + wired + wireless three-mode connection. Customizable Volume Knob: Allows users to tailor the volume control to their preferences. Dual Knob Control: Features two knobs for intuitive volume and function adjustments. RGB Lighting: Comes with customizable RGB lights for a look. Reverse Direction Knob: Includes a reverse-direction knob for enhanced user experience. Bluetooth Connectivity: Offers single-button Bluetooth pairing for easy device connection. Color: As Shown Material: Aluminum Alloy Package Contents: 1*Dual Knob Keyboard 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.