The Home Theater Sound Bar with Amazon Alexa Built-In With integrated far-field microphones and Alexa voice services use your voice to control the sound bar smart home devices and stream music — “Just Ask.” Features patented Voice Adjust technology for crystal clear dialogue a wireless subwoofer for deep bass and 4K compliant HDMI ports. Plus it’s fully compatible with FireTV. Includes HDMI and optical cables for quick and easy setup. Features Performance-tuned driver array wireless subwoofer and Dolby/DTS surround sound decoding for an immersive room-filling home theater experience Amazon Alexa enabled — integrated far-field microphones to easily control play pause volume and source selection with your voice – “Just Ask” Stream music control smart home devices search information listen to audiobooks on Audible set alarms and Amazon Fire TV compatible Works with 4K and HD TVs — built-in dual HMDI 2.0b inputs ensure 4K HDR content looks great Alexa Enabled Means Better Control When you say "Alexa" the Command Bar automatically lowers its volume letting you clearly state your command. That's because Amazon Alexa Voice Services and far-field microphones are built-in to the sound bar. And that's the difference between "Alexa Enabled" vs "Works With Alexa." Rich Immersive Home Theater Sound With a performance-tuned driver array wireless subwoofer and Dolby/DTS surround sound decoding you get an immersive room-filling home theater experience. Control Your Sound Bar with Amazon Alexa The sound bar's integrated far-field microphones make it easy to control master volume set bass level sound mode and source selection with your voice — your voice is the remote. Alexa Action Button on Remote Includes deluxe infrared remote control (IR) with integrated Alexa action button — just press the action button and the Command Bar will decrease in volume to ensure your voice commands are heard even when you’re listening at high volumes. HD TV Compatible Works with 4K and HD TVs...