Marvo CM306 with 19-key rollover support for enhanced commands readings. Quickly access and control the volume of your media player. check email and more. Streamlined mouse shape accommodates various grip styles. Quick 4-step DPI selection button. Optimized tracking accuracy for both laser and optical sensors. | Marvo 3-in-1 Wired LED Rainbow Backlit Gaming Keyboard+Mouse+Mouse Pad Combo Set.