Review on Multimedia Controller Knob for PC Speakers - Mini USB Volume Control Adjuster with 4.9ft Cable, Switch Control Module, Computer Audio Digital Remote Control by Diana Owens

Just received it and hooked it up, works great. I wish they had instructions in English. Beyond the basics of volume control and muting. You can put the controller in high speed mode by pressing the button 6 times. This allows the controller to switch from 0 to 100% in one revolution. You can also put it in night mode by holding the button for 8 seconds. This keeps the LED on all the time, but at about 50% intensity. If you change the volume, it lights up again at 100%. I took the board out of the case anyway and installed it in the front panel of my case. I noticed that the board has a row of empty DIP switches and a list of different modes that the controller can be put into using those switches. Maybe I'll just have to look into getting and soldering the switches and see what happens.