This USB Volume Control enables you to quickly adjust the volume and also supports one key to make it mute.

Feature:
Volume Controller
Rotate the knob to adjust the volume of audio from PC or phone (OTG cable is not included).

One Key Mute
Press down the knob to make it mute. A considerate design for you when in emergency.

Plug and Play
No drivers required. Easy to use.

Application at Various Occasions
You can use it when listening to music, watching videos, playing games, gathering, office, etc.

Wide Compatibility
Support Win7/8/10/XP/Mac/Vista Android.

Specification:
USB Interface: USB2.0
PC input interface type: USB-C
Power supply: USB Power
Power dissipation: MAX 0.5W
Operating temperature: -5 ~ +70
Operating humidity: 5% ~ 90%
Item size: 65* 65* 40mm/ 2.56* 2.56* 1.57in
Package size: 120* 90* 45mm/ 4.72* 3.54* 1.77in
Package weight: 179g/ 6.31oz

Packing list:
1 * USB Volume Control
1 * USB cable
1 * User manual