This sale is for a new in box Mini Active Volume Control Knob 3.5mm Audio Adjuster PC Speaker Amplifier Switcher, Volume Control Knob Speaker Audio Adjuster USB for Win10/8/7/Vista/XP/Mac. Please see the photos and message me with any questions. Below is additional information from the manufacturer:

Application: use it for watching videos, playing games, even will be the best volume controller for various activities, wedding, celebration, meeting, performing and etc.Supports for Win 10/8/7/Vista/XP/Mac.

• Small and Delicate; Aluminum Case, CNC Machining Process; Gold-plated pins, Strong Construction: made of metal shell and ALPS rotary shatt

• 3.5mm Audio In: Connect Tablet PC, Computer, Phone, Audio Player. 3.5mm Audio Out: Connect Power Amplifier, Active Speaker, Headphone Amp

• Linear airborne inductance ensures a good listening experience, Replaceable signal cable; High-end step potentiometer; Bottom spongy cushion

• Simple usage: Just insert it to your computer, then it will start to work; If you use it with OTG cable, it can also work for phone.

Features:

1.Small and Delicate; Aluminum Case, CNC Machining Process; Gold-plated pins

2.3.5mm Audio In: Connect Tablet PC, Computer, Phone, Audio Player.

3.3.5mm Audio Out: Connect Power Amplifier, Active Speaker, Headphone Amp

4. Replaceable signal cable; High-end step potentiometer; Bottom spongy cushion

5. Linear airborne inductance ensures a good listening experience

6. Supports for Win10/8/7/Vista/XP/Mac.

7.Strong Construction: made of metal shell and ALPS rotary shaft

8. Simple usage: Just insert it to your computer, then it will start to work; If you use it with OTG cable, it can also work for phone

9. Application: use it for watching videos, playing games, even will be the best volume controller for various activities, wedding, celebration, meeting, performing and for Windows XP/7/8/10/, for Mac/Linux/Vista Android

Material of the shell: Aluminum

Color: black

Size: 63x50x40mm.

Material: metal.

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