1. 3 Application Scenarios, Button Customization, Rgb Lighting Effects 2. Wireless 2.4G, 4 Buttons 3. 4-Button Wireless Custom Keyboard. Supports 3 Modes: Wired Sb, Wireless 2.4G, And Bluetooth. Has 4 Buttons. With The Key Value Editing Software, The Key Code Of Each Key Can Be . It Has 3 Scene Modes, And Different Key Values Can Be Used In Different Scene Modes. 4. Wireless Mode, Automatic Sleep 5. All Four Buttons Are , And Each Key Can Have Custom Key Values. The Dial Power Switch Is Used To Turn Off/On The Power Supply. Product Size: About 98x66x13mm Type: Mechanical Keyboard Connection With Computer: Wireless Colour:black Material:ABS Package Contents: 1 x 4-Key Wireless Custom Keyboard 1 x 2.4g Receiver 1 x Type-C Cable Note:Different Batches May Have Differences In Product Appearance, Color, And Printed Characters, Which Will Not Affect The Use 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.