Enhance your DJ experience with the Tempo Fader Rotary Knob DNK6769 for Pioneer DJ Controller System. This high-quality knob is compatible with a wide range of models, including DDJ400, DDJREV1, XDJRR, and more. It comes in sleek black color and is made by AlphaTheta, a trusted name in the music industry. This knob comes with a 90-day manufacturer warranty, ensuring that you can enjoy using it without worrying about any defects. Upgrade your DJ setup with this knob, and take your mixing and scratching skills to the next level.