Welcome to enewshop.USB Volume Control Computer Speaker Audio Volume Controller Adjuster with One Key Mute Function
This USB volume adjuster can directly control the computer operating system volume. It is a great volume control tool for watching videos, playing games, even will be the best volume controller for wedding, meeting, celebration and so on. 
Features:
Strong Construction
Made of metal shell and with rotary shaft, equipped with breathing light and coming with USB cable.
Wide Range of Volume
The volume can be adjusted from 1 db to 100 db up to your choice, without any sound attenuation.
Long Life Span 
Rotary shaft supports 360°infinite rotation, more durable and great for long-time usage.
Simple Operation
No need to install any driver or software on your computer to drive this volume regulator, it will work once you plugging on the device.When rotating or pressing the volume knob, the breathing light under it will light on.
One Key Mute Function
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. 
Specification:
Comatibility: for Windows XP/7/8/10/, for Mac/Linux/Vista/Android
Material of the shell: 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 Size: 11.7 * 9 * 4cm / 4.61 * 3.54 * 1.57in (L * W * H)
Package Weight: 153g / 5.4oz
Package List:
1 * USB Volume Control
1 * USB Cable
1 * User Manual(English)