From the Coolermaster website: "The Musketeer clearly displays the fan voltage, the audio sound pressure and the temperature of the thermal sensor. The two front sliders allow users to adjust the fan speed and the dynamics of the sound pressure with no further hassles. Plus, the Musketeer\’s Audio Sound Pressure device will simply swing along with sound, just like legacy amplifiers, perfectly corresponding with the spirit of One for All and All for One. Let’s find out.