3-button wired custom keyboard, only supports wired USB mode, USB wired connection, 5V power supply. It has 3 buttons and a rotary encoder. With the key value editing software, the key code of each button can be . It has 3 scene modes of media control, software shortcut keys and code copy, and different key values can be used in different scene modes. The 0.96-inch LCD can display the functions of the 3 buttons in the current scene. RGB lighting effect, LCD display, support for ordinary buttons, multimedia buttons and mouse button functions. Hot-swap buttons. Instructions: The 3 buttons are , and can only be pressed one at a time, and cannot be pressed in combination. The rotary encoder can be turned left, right, and pressed. The toggle switch is used to turn the RGB light on or off. Each key can have a custom key value. Scene switching function: Press the three buttons at the same time for 3 seconds, and then release them to enter the scene switching mode. The lights will go from off at the same time to only one light on. If light 1 is on, it means that it is in scene 1 at this time, and if light 2 is on, it means that it is in scene 2 at this time. Rotate the knob to select scenes 1, 2, and 3. In different scenes, each button can have a different key value. After the selection is completed, press the 3 buttons for 3 seconds or reinsert the USB cable to restart to exit the scene setting mode. Colour:Black and Transparent Material:Acrylic and Aluminum Alloy Package Contents: 1 x 3-key Wired custom keyboard 1 x Type-C 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.