"M" key click to switch modes: click to switch to the next mode, cycle through all modes
"S" key click to adjust the speed: click to switch to the next speed, and cycle all speed gears in 5 increments;
"S" key to adjust the brightness of the light: in the monochrome mode, press S to adjust the brightness of the light, and cycle all the gears in 4 steps.
Press and hold the "S" key to turn on and off the light: this key turns off the light for 2 seconds (after turning off, press the "M" key or the "C" key to turn on the light again.
"C" key click to switch colors: any mode click to switch monochrome mode, click again to switch colors, a total of 7 colors; (red, green, blue, yellow, ice blue, pink, white)