Koolertron Backlit Gaming Keyboard with Purple Red Blue Cool backlit color,Spill-Resistant and Multimedia Design (Black) LED Rainbow backlit keyboard to ensure each button clearly visible in the night. One key to turn on/off backlighting effect, with adjustable brightness. With multimedia keyboard shortcuts, 19 anti-ghosting keys, best choice for gaming. Spill-resistant design. Plug and play, no need installation program.