The Polk Audio CSi3 Center Speaker is a sleek black unit with a rectangular shape, designed for use in a 3.0 channel audio system. It features stereo L/R RCA audio inputs for wired connectivity. This center speaker is part of the Polk Audio brand and model CSi 3, offering high-quality sound output for your home audio setup. The unit quantity is specified as 1, making it a standalone piece for enhancing your home entertainment experience.