USB Volume Control KnobMicro USB Multimedia Audio Volume Controller Volume Adjuster Computer Speaker Volume Control Switch for Windowsfor Android for OS X System

- The brushed non?slip frosted knob can be adjusted with a single finger, and it feels comfortable. - USB plug and play, support for Windows, for Android, for OS X system, no need to manually install the driver. - High-quality main control chip, main frequency is up to 16MHz, quick response , and response time is less than 1ms. - The blue breathing light enhances the sense of interaction, and will automatically go out if it is not moving for a long time. - Replaceable USB cable design can adapt to different needs and is convenient for long?distance adjustment.