"Item Type: USB Computer Volume ControllerProduct Material: MetalWeight: Approx. 257g / 9.1oz"1Compatible with: USB computer volume controller is compatible with multiple systems, and suitable for WIN10/8/7/XP, for VISTA, for OS X.2Fast and Sensitive: The USB volume controller adopts an imported chip, with a frequency of up to 16MHZ, quick response, and sensitive operation.3One Button Mute: USB volume control supports one button mute function. Just press the knob once to enter the mute state, and press it again to restore sound.4Replaceable USB Cable: The replaceable USB cable design, which will not cause the controller to be scrapped due to cable failure. It is more flexible and universal with ordinary mobile phone charging cables.5Plug and Play: There is no need to install drivers and software, USB plug and play, and the volume can be easily adjusted through a knob.6Comfortable to Touch: The computer volume controller adopts an all metal shell and anti slip rotating buttons, providing a comfortable touch.7With A USB Cable: Equipped with a USB cable for more flexible use, suitable for desktop or laptop computers.