Dolby Digital 5.1 / DTS Virtual:X - Enjoy enhanced surround sound and get the most out of your favorite movies, shows and games with Dolby Audio and DTS Virtual:X. Dolby Audio actively adjusts the volume to enhance content and transitions between high and low volume, plus DTS Virtual: X expands your listening experience no need for extra speakers. Built-in Center/Side Speaker - The built-in center and side speakers are dedicated to delivering enhanced dialogue so you won't miss a word, no matter how faint the conversation or how intense the background music or action is. Subwoofer with Bass Boost - Get that big boom with our included subwoofer with bass boost. Elevate the action and take your listening experience to the next level. Bluetooth Multi-Connection - Easily connect two smart devices simultaneously to share control of the Soundbar without having to disconnect every time. Conveniently play your favorite music from different devices.* *Soundbar mobile connection is not available when connected to the TV. Requires Bluetooth compatible devices. Voice Enhanced - Voice enhance optimizes the equalizer and amplifies the dialogue on the screen so that voices can be heard more clearly. *Setting can be controlled by the Samsung soundbar remote and SmartThings App for Wi-Fi enabled models. Samsung 5.1ch. DTS Virtual:X Soundbar with Bass Boost and Wireless Sub HW-B73MD/ZA - Black Features: Dolby Digital 5.1 / DTS Virtual:X - Enjoy enhanced surround sound and get the most out of your favorite movies, shows and games with Dolby Audio and DTS Virtual:X. Dolby Audio actively adjusts the volume to enhance content and transitions between high and low volume, plus DTS Virtual: X expands your listening experience no need for extra speakers.