3-button wired custom keyboard, supports USB wired connection only, 5V power supply. Features 3 programmable buttons and a rotary encoder. Includes key mapping software to customize the key code for each button. Offers 3 scene modes: media control, software shortcuts, and code copy — each with independent key assignments. A 0.96-inch LCD displays the current function of each button per active scene. RGB backlighting, LCD display, supports standard keys, multimedia keys, and mouse button functions. Hot-swap switch compatible. Usage notes: - The 3 buttons operate individually (no simultaneous pressing). - Rotary encoder supports left/right rotation and press functionality. - Toggle switch controls RGB lighting on/off. - Each button supports customizable key values. Scene switching: - Press all 3 buttons simultaneously for 3 seconds, then release to enter scene selection mode. - LED indicators cycle to show current scene (1 light = Scene 1, 2 lights = Scene 2, 3 lights = Scene 3). - Rotate the encoder to select Scene 1, 2, or 3. - Each scene supports unique key mappings. - Exit scene setup by pressing all 3 buttons for 3 seconds or unplugging and reinserting the USB cable. Color: Black & Transparent Material: Acrylic + Aluminum Alloy Package includes: - 1 × 3-key wired custom keyboard - 1 × Type-C cable Note: Color appearance may vary slightly due to screen settings and lighting conditions. Dimensional tolerance: ±1–3 cm.