This USB volume adjuster can directly control the computer operating system volume, just by turning the knob!
With the supplied 2 meter USB cable, you can put it anywhere on your desk for easy access and control of your volume.
It is a great volume control tool for example watching videos, listening to music, playing games and any other desktop setups.

Features
High quality and durable aluminium case, rotary shaft and knob.
Equipped with breathing LED light.
USB cable included.
The volume can be adjusted from 1 db to 100 db up to your choice, without any sound attenuation.
Rotary shaft supports 360°infinite rotation, more durable and great for long-time usage.
When rotating or pressing the volume knob, the breathing light under it will light on.
With one key mute function, when you are listening to music, just press the knob, it will stop at once and back to music when you press again. 
No need to install any driver or software on your computer, just plug it in and it will work, Plug&Play!

Specification
Compatibility: Windows XP/Vista/7/8/10 and Mac/Linux/Android
Material: Aluminum 
Cable Length: 2m / 6.56ft 
Item Size: 6.2 * 4.8 * 3.9cm / 2.44 * 1.89 * 1.54in
Item Weight: 107g / 3.77oz
Package Weight: 153g / 5.4oz

Package list
1 * USB Volume Control
1 * USB Cable