Geek Squad Certified Open Box. (See more details below). Treat yourself to a movie theatre experience in the comfort of your own home with this Polk Audio Signa S2 sound bar. It delivers powerful sound with a 2.1 channel speaker that also includes a wireless compact subwoofer for the bass-thumping boost needed for immersive audio. HDMI ARC and Optical inputs offer the latest 4K compatibility. | Open Box - Polk Audio Signa S2 2.1 Sound Bar with Wireless Subwoofer