3D Audio w/ Dolby Atmos Built-in subwoofers HDMI eARC Denon Dialog Enhancer Low profile design Bluetooth The Denon DHT-S217 is a slender sound bar featuring two powerful, built-in down-firing subwoofers and Dolby Atmos 3D audio technology to create a surround sound experience without a separate subwoofer. Quickly connect devices through the HDMI (eARC) and Optical inputs or stream music via Bluetooth.Upgrade to a Dolby Atmos sound barTwo built-in down-firing subwoofers help create a powerful home theater surround sound experience.Discover 3D audio with Dolby AtmosImmersive surround sound for the perfect cinema experience.Upgrade your TV soundFull-range sound bar with built- in subwoofers and crystal-clear dialogue.Easy music streaming via BluetoothPair your smartphone or tablet to easily stream music via Bluetooth.Immerse yourself in lifelike, full-range soundWith two built-in down firing subwoofers, dual mid-range drivers and tweeters, you will enjoy an amazing movie and TV show audio