This is a vintage Studio Acoustics 6-way stereo speaker selector switch box model SS-2006. It is compatible with universal brands and is designed to select between six different sets of speakers. The device is made in China and comes in a black color. It falls under the category of home audio components and is specifically a speaker selector. Impedance matching design enables high quality audio distribution Suitable for 4.6 8 ohm speaker systems Designed to operate with up to 12 speakers Total power output of 180 watts RMS and 360 watts music power for 6 pairs of speakers A/B source switch allows selection between 2 sources Low power loss and heat generation