USB Audio Volume Controller Knob, Volume Adjuster Rotary Computer Speaker Volume Control Switch For Win7/8/10/XP/Mac/Vista Android (Black)

The USB volume controller knob is made of metal shell; ALPS rotary shaft supports 30 anchor points every lap & 360°infinite rotation., When you are listening to music, just press the knob, it will stop at once and back to music when you press again., Turning the knob to turn up or down volume, press the the knob to make it mute, press down the knob and turning to adjust quikly. Knob for 8s, it will enter to the night mode, breathing light will stay on., No need to install any driver or software on your PC to drive this volume regulator, it will work once you plugging on the device.The USB volume adjuster directly adjusts your Windows volume which won't cause distortion and noise., Compatible with multiple systems,supports Win10/8/7/Vista/XP/Mac/Android,simple and convenient.