Audio Adjuster Volume Controller For Windows
How to use this multimedia knob:
Mute/Unmute: Press the knob to mute the computer, press again to unmute.
Volume adjustment: turn the usb volume knob clockwise to increase the volume, and turn the knob counterclockwise to decrease the volume.
Previous song/Next song: Press and hold the knob, then turn clockwise to switch to the next song, and turn counterclockwise to switch to the next song.

Each Set product Package Include:
Plug and play, no drive
Metal-plated USB port is more stable and durable
Product specifications:
Size: 5.4*3.5*2.1 inches
Weight: 60g
Material: High quality aluminum alloy
Colour: Black