The Bose Smart Soundbar 550 is a rectangular 3.1 channel soundbar that features Dolby Atmos surround sound. It has 500W RMS power and offers wireless connectivity via Bluetooth and Wi-Fi. The soundbar includes audio inputs such as AUX, Digital Optical TOSLINK, and HDMI, and comes with a remote control for convenient operation. Fully Certified refurbished by Bose. like NEw!!!