Feature 1 The brushed nonslip frosted knob can be adjusted with a single finger, and it feels comfortable. 2 USB plug and play, support for Windows, for Android, for OS X system, no need to manually install the driver. 3 Highquality main control chip, main frequency is up to 16MHz, quick response , and response time is less than 1ms. 4 The blue breathing light enhances the sense of interaction, and will automatically go out if it is not moving for a long time. 5 Replaceable USB cable design can adapt to different needs and is convenient for longdistance adjustment.Item Type: Volume Control KnobMaterial: Aluminum AlloyInterface: Micro USBType-C Line Length: Approx. 1.5m / 4.9ftScope of Application: For Windows/OS X/Android device Package List1 x Volume Regulator1 x Data Line1 x ManualNote1. Please allow 01 inch error due to manual measurement. Thanks for your understanding.2. Monitors are not calibrated same, item color displayed in photos may be showing slightly different from the real object. Please take the real one as standard.