200W Stereo Volume ControlStereo Speaker Volume Control Rotary StyleFor 4/8/16 Ohm speakerFreq Resp.: 35-20KHZ
Selectable impedance matching (1X,2X,4X,8X)
Dimension Inches (L*H*D) 1.62"x3.1/4"x2.5"
Colour: White
This speaker volume control, Requires an electrical box mount to install into the wall