I purchased this from TAO, but the button settings and other configurations are only available in Chinese. Otherwise, it seems to function without any issues. I checked it once and then left it unused. A USB-connected STREAM DOCK, an operational device equipped with six LCD buttons, three buttons, and three knobs. - Model Name: STREAM DOCK - Connection Type: USB - Number of Buttons: 8 - Knobs: 1 - Color: Black Thank you for looking.